无效

wú xiào

HSK 3.0 Level 5 Verb Common

Definitions

1. not valid
2. ineffective
3. in vain

Word relationships

Antonyms

1 item

有效

yǒu xiào

effective

General opposite for valid or effective

Related words

1 item

无用

wú yòng

useless

Useless or in vain, close in meaning

Synonyms

1 item

作废

zuò fèi

to become invalid

When something becomes null and void, like a ticket or document

Usage notes

Common mistakes

无效 is an adjective, not a verb. You cannot say 我无效这个卡 (I invalidate this card); use 使…无效 (shǐ ... wúxiào) to express causing something to become invalid.

Example Sentences

1 shown

这张票已经无效了。

This ticket is already invalid.

AI-generated examples are marked with this icon.

Words Containing 无效

毫无效果

háo wú xiào guǒ

to no avail

Child Words of 无效

not to have

effect