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Definitions
- 1. not to have
- 2. no
- 3. none
- 4. not
- 5. to lack
- 6. un-
- 7. -less
Example Sentences
1 shown或有或 无 ......
Sentence data courtesy of Tatoeba.org.
Words Containing 无
rude and unreasonable
excellent in every respect
to abscond without leaving a trace (idiom)
complete nonsense (idiom)
wireless (bra)
education for everyone, irrespective of background
untitled
Life is short, learning is limitless
without learning or skills (idiom); ignorant and incompetent
to be more scared than hurt (idiom)
lit. no antidote is possible (idiom); incurable
not even enough land to stand an awl (idiom); absolutely destitute
The sea of bitterness has no bounds, turn your head to see the shore (idiom). Only Buddhist enlightenment can allow one to shed off the abyss of worldly suffering.
mediocre and incompetent
not a sound to be heard (idiom)
not essential
may you enjoy boundless longevity (idiom)
without guilt
He who gives no thought to far-flung problems soon finds suffering nearby (idiom, from Analects).
see 食之無味，棄之可惜|食之无味，弃之可惜[shí zhī wú wèi , qì zhī kě xī]
proletariat
anarchism
coarse in speech and manner
extremely vast
without proof one can't believe it (idiom)
need not
homeless
no matter how big or small
completely focused
lit. a banquet with no empty seats
not know where to start
pitiless
fig. people who cannot afford to buy their own house
feeling of powerlessness
certainty
constantly increasing without limit (idiom); rapid progress in all directions
Don't get a reward if it's not deserved. (idiom)
to shoot without aim (idiom); fig. to speak without thinking
there is nothing the determined person can't accomplish (idiom)
powerless
Wireless transmission regulatory commission
without support
(having) big boobs but no brain
atheism
without any fear of consequences
to die peacefully
sterile; aseptic
anatta (Buddhist concept of \non-self\)
extremely
destined to meet but not fated to be together (idiom)
incoherent speech
exhaustive
a water goblin in Chinese mythology usually depicted as a monkey
endless
anywhere
fretless (stringed instrument)
without good cause
if you beat the snake without killing it, endless evils will ensue (idiom)
to create something from nothing (idiom)
paperless office
(neologism) (slang) it's none of your business (imitation of an accented pronunciation of 與你無關|与你无关[yǔ nǐ wú guān])
too busy
utterly fearless
remain calm and undaunted
silly talk or \mo lei tau\ (Cantonese), genre of humor emerging from Hong Kong late in the 20th century
deeply obliged
no poison, no great man (idiom); A great man has to be ruthless.
amorphous carbon
absolutely unrestrained
to lay bare
to remain silent
inert
see 杳無音信|杳无音信[yǎo wú yīn xìn]
Sapindales
neither for nor against sth
lit. a tortoise laughing at a soft-shelled turtle for having no tail (idiom)
disordered and in a mess (idiom); all mixed up and chaotic
flavorless; unpalatable
no profit
unconscious
lit. father a lion, son cannot be a dog (honorific); With a distinguished father such as you, the son is sure to do well.
variable
a nobody
lit. seamless heavenly clothes (idiom)
null hypothesis (statistics)
remote and uninhabited (idiom); deserted
tedious
to turn one's face against sb and show no mercy (idiom); to turn against a friend
to travel far and wide looking for sth, only to find it easily
self-taught
(idiom) \no comment\
to blab
unnamed hero
ring finger
to say not a word that is not appropriate (idiom)
infinite set (math.)
to disperse and flee, leaving no trace
without inconvenience
without one's own opinions
no end to learning (idiom); There's always something new to study.
no matter what or how
not to be inferior in any aspects (idiom)
receiver (radio)
unable to reply (idiom); left speechless
fabless (semiconductor company)
pale and feeble
Asanga (Buddhist philosopher, c. 4th century AD)
immense
a hero with no chance of using his might
a flower may blossom again, but a person cannot get young again (proverb)
bored
supreme
preposterous
nowhere to hide
my opinion, nothing very involved (idiom, humble expression); my humble point is a familiar opinion
to disappear without trace (idiom)
Study everything, at all times, everywhere. (Zhu Xi 朱熹[zhū xī])
There are three ways to be unfilial; having no sons is the worst. (citation from Mencius 孟子[mèng zǐ])
indifferent
unconditional
unsigned (i.e. the absolute value, regardless of plus or minus sign)
avaricious and insatiable (idiom); greedy and never satisfied
Life is short, learning is limitless
lit. look into one's heart, no shame (idiom); with a clear conscience
will die for sure; to be a goner
be plainly visible
unspecified period
harmful and without benefit (idiom); more harm than good
lit. large waves in windless conditions (idiom)
omnipotent
trolleybus
expressionless
unreal
unaffected (i.e. behaving naturally)
innocent
lit. crow and peacock make no sound
omnipresent
irreproachable (idiom)
Reporters Without Borders (pressure group)
to have eyes without luster (idiom)
lit. come without a shadow, leave without a footprint (idiom); to come and go without a trace
product lacking one or more of three requirements such as production license, inspection certificate, and manufacturer's name and location
sexless
safe and secure
to have no way out
not excluding anything
achieving nothing
unoriginal
whenever
infinitesimal
anhydrous (chemistry)
Reporters Without Borders (pressure group)
(Chinese folk religion) Heibai Wuchang: two deities, one dressed in black and the other in white, responsible for escorting the spirits of the dead to the underworld
to advance courageously (idiom)
indistinct
without agricultural chemicals
lit. idly poke a stick in the mud and it grows into a tree to shade you
non-vessel-owning common carrier (NVOCC) (transportation)
wheat starch
to lack patience
inorganic chemistry
unrelated
to live together in harmony
plea of not guilty
countless
lit. the falling flowers are yearning for love, but the heartless brook ripples on (idiom)
jet injector
amitosis
strictly impartial and incorruptible (idiom)
(idiom) (of a good outcome) unanticipated
(idiom) mutual exchange of assistance; to benefit from each other's strengths and make up each other's shortfalls; to reciprocate with material assistance; to scratch each other's back
to have no solution
seamless connection
very close
gone without a trace
not to be worried about
to be unsalaried
koala
without any sense of shame
no way out
helpless
needless
a cappella (music)
not hiding anything he knows, not stopping before he has said it through (idiom)
sugar free
free and unconstrained (idiom); unfettered
ashen-faced
avaricious and insatiable (idiom); greedy and never satisfied
to pay no heed to the regulations
boundless
nobody can compete with
mutual exchange of assistance (idiom)
unpixelated or uncensored (of video)
(idiom) to fail to finish off what one started
boundless joy
totally unaffected
to receive no news whatsoever about sb
to have nothing to do with
extremely (pleased, grateful etc)
Heaven never bars one's way (idiom); don't despair and you will find a way through.
to make trouble without reason (idiom); to be deliberately provocative
untrustworthy; not true to one's word
not to affect sb
anaerobic
not in the least
toothless
Pearl of Great Price (Mormonism)
to work hard while accomplishing little
without hope
(psychology) learned helplessness
nowhere to go
not even enough land to stand an awl (idiom); absolutely destitute
to have no right
come without a shadow, leave without a footprint (idiom); to come and leave without a trace
ashamed and unable to show one's face (idiom)
to possess nothing except bare necessities
quietly
all taboos are off (idiom); anything goes
atheist
nuclear weapon-free zone
outsider (i.e. not expected to win a race or championship)
dull
in perfect condition
enterprise with no premises, capital or regular staff
inhuman (idiom)
(Internet slang) nothing left to live for
asexual reproduction
not alone but in pairs (idiom, usually derog.); not a unique occurrence
If you want to condemn sb, don't worry about the pretext (idiom, from Zuozhuan 左傳|左传); one can always trump up a charge against sb
there is no alternative
unheard of
endlessly
Proletarier aller Länder, vereinigt euch!
pure of heart
smokeless coal
uncertain
lit. when the nest overturns no egg remains intact
to be of no interest to anyone (idiom)
lit. has a name but no reality (idiom); exists only in name
frost-free period
no strategy left to try (idiom); at one's wit's end
selfless
in good condition
myasthenia gravis (medicine)
very little
safe and sound (idiom)
point at infinity (math.)
one cannot concentrate on two things at the same time
trackless
no time to spare (idiom)
nameless
colorless
to have no cares
low-alcohol beer
meshless method (numerical simulation)
innocent
nothing else
lit. to prescribe moxibustion for oneself when not ill; to cause oneself trouble with superfluous action
temperamental
weakly and without strength (idiom); dispirited
(literary) I trust you have been well since we last met
to speak harshly but without any bad intent (idiom)
to act shamelessly
to meet again at unspecified date
unspeakable
avidya (Buddhism)
bored to death (idiom)
ignorant
dull and colorless (idiom); lacking vitality
the bottomless pit (Hell in the Bible)
drone; unmanned aerial vehicle
unable to turn around a hopeless situation (idiom)
detailed and nothing left out (idiom); meticulous and comprehensive
no danger of anything going wrong
fire and flood have no mercy (idiom)
infinitesimal (in calculus)
No Child Left Behind Act, USA 2001
whatever the case
anything
to make nuclear-free
nobody is perfect
unprecedented in history
incurable
insignificant
not a single grain was reaped (as in a bad harvest year)
to have achieved nothing
of no avail
unequalled in his time
to have no other use or purpose (idiom)
without reservation
to have no other choice
aseptic
(idiom) to have had relationships with many men
committing all manner of crimes
noiseless
as far as the eye can see (idiom)
selfless
endless
regardless of the law and of natural morality (idiom); maverick
fig. one who is too severe has no friends
to triumph in every battle and win every fight (idiom); all-conquering
lit. cuts and bruises all over (idiom); fig. totally refuted
time is limited (idiom)
to consider everyone else beneath one (idiom); so arrogant that no-one else matters
don't blame the speaker, take note of his warning (idiom); an exhortation to speak one's mind without fear of reprisals, and with the expectation of being taken seriously
to look up and see no-one familiar (idiom); not having anyone to rely on
nonnuclear
lit. things are not separated according to their size (idiom)
to possess nothing except bare necessities
attempting nothing and accomplishing nothing (idiom); without any initiative or drive
Wuji county in Shijiazhuang 石家莊地區|石家庄地区[shí jiā zhuāng dì qū], Hebei
unable to return the favor
insolence
having nothing (idiom); utterly destitute
perfect and without blemish
cruel and unfeeling (idiom)
to no avail
no cause, no reason (idiom); completely uncalled for
decaffeinated
in the country of the blind the one-eyed man is king (idiom)
to be unable to find a place to stay (idiom)
gone forever (idiom)
pointless
not knowing anything at all (idiom); completely ignorant
to have no alternative
completely unprepared
with no regard for law or discipline (idiom); flouting the law and disregarding all rules
to cover all at one glance (idiom)
The boundless vista is at the perilous peak (proverb)
to have or have not
fig (Ficus carica)
drone
to talk without any intention of acting on it
hairless
out of stock
to behave recklessly
flawless
Buddhist salutation or expression of faith (loanword from Sanskrit)
unsuspecting
completely ridiculous and unfounded
not to have access
to win without a fight (idiom)
No wonder!
unlicensed business activity
none
inadvertently
(idiom) to be unable to return to one's hometown due to the shame of failure (originally referred to Xiang Yu 項羽|项羽[xiàng yǔ], who chose not to retreat to Jiangdong after his humiliating defeat)
anonymous (e.g. author, donor etc)
no man is not...
presumption of innocence (law)
cloudless
beef tapeworm
to have no idea
not one good point
to have nothing to do
unsurpassed
Knowledge is not innate to man, how can we overcome doubt?
lit. to be hardly worth eating, but it would still be a pity to discard it (idiom)
unclaimed lost property
clean and spotless
(idiom) unprecedented
radio broadcast
has eyes but can't see (idiom); unable or unwilling to see the importance of sth
mere verbal statement cannot be taken as proof (idiom)
aimless
uncontroversial
limitless
connectionless
to have a clear conscience; to feel no qualms; to be worthy of (sth)
to accumulate wealth without satisfaction
person without identification papers, a normal residence permit or a source of income
to have no news whatever
at leisure
irrevocable
to act as though there were nobody else present
there has never been and never will be another person like this (idiom)
to eat three square meals a day and do no work (idiom)
to die without a burial site
extravagance
nihilism
unprincipled
not having to worry about food and clothes (idiom)
to triumph in every battle and win every fight (idiom); all-conquering
invisibles (trade)
Wudi county in Binzhou 濱州|滨州[bīn zhōu], Shandong
to return without any achievement (idiom); to go home with one's tail between one's legs
ape
to no avail
to have disastrous consequences
to have disastrous consequences
lit. without wind there cannot be waves (idiom); there must be a reason
incomparable
Wuwei county in Chaohu 巢湖[cháo hú], Anhui
lit. not aiming to achieve the best possible result, but rather trying to avoid making mistakes (idiom)
to turn one's face against sb and show no mercy (idiom); to turn against a friend
shameless
Wi-Fi hotspot
orphaned of all one's immediate relatives (idiom); no one to rely on
as if nothing had happened (idiom); calmly
immoderate
(of a document) not bearing a name
better than nothing (idiom)
see 出其不意，攻其不備|出其不意，攻其不备[chū qí bù yì , gōng qí bù bèi]
irrational
more than one can bear (idiom); at the end of one's patience
unlimited
see 阿鼻地獄|阿鼻地狱[ā bí dì yù]
Everyone makes mistakes (idiom)
carefree and without worries (idiom)
wireless
honor does not allow one to glance back (idiom); duty-bound not to turn back
to harm the innocent (idiom)
known to everyone
there cannot be another one like it
lit. 300 silver taels not hidden here (idiom); fig. to reveal what one intends to hide
in bad faith
nothing he can't do
to gain nothing
to take a casual remark to heart (idiom)
no heart for tea or rice (idiom); melancholic and suffering
endless
No flower can bloom for a hundred days.
ordinary and mediocre (idiom); nothing to write home about
whole
inorganic salt
proletariat
curious coincidence
safe and sound
blessings never come in pairs (idiom)
harmless
unintentionally
to die without regret (idiom, from Analects)
to be invincible
no fear of deficiency
see 嘴上沒毛，辦事不牢|嘴上没毛，办事不牢[zuǐ shàng méi máo , bàn shì bù láo]
undoubtedly; without doubt; for sure
have no way out
not a soul in sight (idiom)
to stretch as far as the eye can see (idiom)
grandiose but impractical (idiom)
lit. when the nest is upset no egg is left intact (idiom)
unpaid leave
insatiably greedy (idiom)
nothing other than
a horse cannot get fat without an extra ration, a man cannot get rich without an extra income (idiom)
wireless
invertebrate
to be unable (to do sth)
to feel helpless
close relation, no gap (idiom); intimate and nothing can come between
without a retreat route
to have nothing to say (idiom)
useless
ridiculous
helpless lonely person
to turn a blind eye to
dimensionless (math.)
to pass into oblivion
no one to rely on (idiom); on one's own
bottomless
disorder
all the time
cannot be doubted (idiom)
ceaseless; endless (idiom)
desolate and uninhabited (idiom)
like mice trying to pull a turtle, nowhere to get a hand grip (idiom)
The cleverest housewife cannot cook without rice (idiom); You won't get anywhere without equipment.
limitless
far in the indefinite future (idiom); so far away it seems forever
to stand aloof from worldly affairs
silence reigns (idiom)
secure in the knowledge that one has backing
to triumph in every battle and win every fight (idiom); all-conquering
having no advantage whatsoever
unequalled
to be duty bound
open and candid (idiom); not hiding anything
nothing is too bizarre
to start but not finish (idiom); to fail to carry things through
it will cause no end of trouble (idiom)
not valid
see 無殼蝸牛|无壳蜗牛[wú ké wō niú]
there is not much left
penniless (idiom)
see 心中無數|心中无数[xīn zhōng wú shù]
(of a defect etc) to be of no great matter (idiom)
not having anything at all (idiom); utterly lacking
harmless
lit. lacking the strength even to truss a chicken (idiom)
to turn a blind eye to
all black, no daylight (idiom); a world without justice
the dead cannot testify (idiom); dead men tell no tales
useless person (originally from Zhuangzi's \A Happy Excursion\ 逍遙遊|逍遥游)
lit. one doesn't visit a temple without a cause (idiom)
to be successful in every endeavor
to get undeserved rewards (idiom)
The path of learning can never be smooth.
to have a rich aftertaste
see 事無巨細|事无巨细[shì wú jù xì]
unobstructed passage
lit. to have one's hands bound and be unable to do anything about it (idiom); fig. helpless in the face of a crisis
to have boundless prospects
to remain silent
irreplaceable
rude
lit. look into one's heart, no shame (idiom); with a clear conscience
there is no harm in saying what one thinks (idiom)
to have a clear conscience
unemployed and idle
not in the least inferior (idiom)
out of one's wits (idiom)
aloof
wingless
too late for regrets (idiom); It is useless to repent after the event.
not to shrink from any crime (idiom); to commit any imaginable misdeed
unmanned
dark and uninhabited (idiom); remote and deserted
(of close friends etc) to tell each other everything
without boundary
free; no charge; at no cost
not yet
faultless; perfect
to have no aspirations (idiom)
nothingness
damaged beyond repair
to speak one's mind
life imprisonment
Médecins Sans Frontières (MSF charity)
at a loss to know what to do (idiom); bewildered
no harm (in doing it)
Wuwei county in Chaohu 巢湖[cháo hú], Anhui
to be without a fixed residence (idiom)
impotent (idiom)
the poor are ignored in the busiest city; the rich will find relatives in the deepest mountain
to do no harm (to sth)
to make endless exorbitant demands
extraordinary strength
infinite sequence
non-vulnerable (in bridge)
regardless of weather conditions
(idiom) you can't rely on a verbal agreement; just because sb says sth, doesn't mean it's true
Wuxi new district of Wuxi city 無錫市|无锡市[wú xī shì], Jiangsu
nothing one can't do
to have many advantages and no disadvantages
to have no basis in fact (idiom)
(computing) near-field communication (NFC)
lit. you plant a garden and the flowers do not bloom, you poke a stick in the mud and it grows into a tree
to ignore; to disregard
invertebrate
refrain from hurting others, yet guard against those trying to hurt you (proverb)
unconditional surrender
to extend all over the globe (idiom)
unsigned remainder (i.e. the remainder after rounding to the nearest integer)
boundless life (expression of good wishes)
cannot be doubted (idiom)
harmful and without benefit (idiom); more harm than good
(idiom) changeable; fickle
in the extreme (idiom)
incomparable
unaccomplished
unemployed person
helpless
unstable
innocent playmates
to part for an unspecified period
known to everybody
completely; fully; without omission
to be left speechless
correct any mistakes you made, but maintain your good record if you did not make them (idiom)
incorporeal
wind does not come from an empty cave without reason
jawless (primitive fish)
in good health
absolute (not liable to comparative degree)
to be perverse and suggestive towards the opposite sex, but shrinking back when provoked to act on it
lit. to go to war without just cause (idiom)
only
whoever
no pain, no gain (idiom)
azoospermia (medicine)
dull
to lose all interest in life (idiom)
see 無可救藥|无可救药[wú kě jiù yào]
lit. a thunder of dragons without a head
to be at an impasse (idiom)
Zhangsun Wuji (c. 594-659), politician and historian of early Tang
transceiver
greed for bribes knows no bounds (idiom); unbridled corruption
(idiom) to have had relationships with many women
invaluable
disorderly
nonsense
to see the ox already cut up into joints (idiom); extremely skilled
one who is unaccountably solicitous is hiding evil intentions (idiom)
Preparedness averts peril.
none lacking
headless fly (a metaphor for sb who is rushing around frantically)
Big Mac (McDonald's hamburger)
no gourd is perfectly round, just as no man is perfect (proverb)
(idiom) simple; plain; unadorned
to work to no avail (idiom)
irrational number
inorganic (chemistry)
to have accomplished nothing (idiom)
to appear and disappear unpredictably
ashamed and unable to show one's face
boundless; limitless
imperceptibly
lit. the fairy is willing, but King Xiang doesn't dream (idiom)
stone tablet without inscription
(in such circumstances) there will be no peace
extremely ugly
unable
to be indifferent
semiliterate
knotless netting (textiles)
for no reason at all
Wudi county in Binzhou 濱州|滨州[bīn zhōu], Shandong
children's words carry no harm (idiom)
empty cave, nothing there (idiom); devoid of substance
obscure and unknown (idiom); an outsider without any reputation
without cause or reason
without end
lit. flies do not attack an intact egg (idiom)
nothing else
to reach everywhere
priceless treasure
not be without some advantage
Pteranodon (genus of pterosaur)
willfully slaughter the innocent (idiom)
without borders (used for organizations such as Médecins sans Frontières)
benighted (idiom)
cannot be found anywhere (idiom)
hoodlum
inadvertent
in every possible way (idiom); meticulous
isolated and without help
(idiom) impossible to fault
absolutely quiet
recoilless rifle
to have a sleepless night
semi-infinite
just a very few (idiom); tiny number
for no reason
bottomless pit
invisible export
Wuxi county in Jiangsu
surefire; absolutely safe (idiom)
nonsmoking (e.g. environment)
nothing
to stand alone
Wuxi, prefecture-level city in Jiangsu
not stopping at anything
sea of learning, no horizon (idiom); no limits to what one still has to learn
accidentally
to have nothing to do
endless
the sky hangs low over the Yangtze, empty as far as the eye can see (idiom); nothing to see to the broad horizon
politically unaffiliated
unhelpful
having matchless strength
to sleep peacefully (idiom)
impeccable moral integrity
futile endeavor (idiom)
tyrannical
can't
disaster and happiness do not follow rules (idiom); future blessings and misfortunes are unpredictable
self-service ticketing
no trumps (in card games)
to have no opportunity
a woman's virtue is to have no talent (idiom)
paperless
not paying attention to anything (idiom); to idle time away
measureless
(saying) people don't get up early unless there is some benefit in doing so
sans serif (typography)
intentionally or otherwise
China state radio regulation committee SRRC
wireless network
see 有一搭沒一搭|有一搭没一搭[yǒu yī dā méi yī dā]
to make trouble out of nothing
to lack male offspring
safe and sound (idiom)
dispirited and downcast (idiom); listless
no good
to have many advantages and no disadvantages
fully deserving, without any reservations (idiom); entirely worthy (of a title, honor etc)
(idiom) to lose everything one invested; to lose one's shirt
lit. leave no hole undrilled (idiom); to latch on to every opportunity
to have no qualified successors to carry on one's undertaking
young and inexperienced; unsophisticated
(idiom) carefree
to obliterate completely
unmanned
no complaints
water that is too clear has no fish, and one who is too severe has no friends (idiom)
to have no alternative (idiom)
(idiom) blind as a bat (figuratively)
to sell anything
nowhere
unfortunately cannot enjoy (idiom)
lumpenproletariat (in Marxist theory)
senseless
supreme
lit. there is no road to the sky, nor door into the earth (idiom)
omniscient
incomparable
painless; pain-free
avaricious and insatiable (idiom); greedy and never satisfied
open and candid (idiom); not hiding anything
not knowing which course to follow (idiom); at a loss what to do
to have no regrets
(of a writing etc) to have no substance (idiom)
to moan about imaginary illness
stupid and ignorant (idiom)
to show in full light
matchless; without equal; there is nothing better
see 未可厚非[wèi kě hòu fēi]
shameless
Big Mac Index, a measure of the purchasing power parity (PPP) between currencies
dumbstruck and unable to reply (idiom)
anthracite
one and only (idiom); rarely seen
all businessmen are evil (idiom)
unlicensed
without trace of human presence
(literary) isn't it that...?
regardless of the season
no wonder (that...)
radio telephony
see 天下無難事，只怕有心人|天下无难事，只怕有心人[tiān xià wú nán shì , zhǐ pà yǒu xīn rén]
Wuxi, prefecture-level city in Jiangsu
not having to worry about clothes and food (idiom)
no way to get by
asymptomatic
inorganic compound
to increase without letup
lit. not an inch of steel (idiom); unarmed and defenseless
wordless and uncommunicative (idiom); without speaking
(idiom) all-conquering; invincible
fig. defying the law and the principles of heaven
not without
radio waves
incessant exorbitant demands
without meaning
indefinitely; of unlimited duration
unable to discipline a child
Wuji county in Shijiazhuang 石家莊|石家庄[shí jiā zhuāng], Hebei
there are plenty more fish in the sea (idiom)
no end of virtuous achievements (idiom); boundless beneficence
not having any special skill
lacking three key attributes (or at least one of them)
incompetence
verified
to talk about everything
to extort taxes excessively
seamless
intolerable
see 安然無恙|安然无恙[ān rán wú yàng]
uninhabited region
unique and unmatched (idiom); unrivalled
infinitesimal
to be everywhere
unemployed
unrivaled (idiom); world number one
unaffiliated
to pay no attention to a familiar sight
carefree and without worries (idiom)