无效

wú xiào

HSK 3.0 等级 5 动词 常见

释义

1. not valid
2. ineffective
3. in vain

词语关系

Antonyms

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• 有效 yǒu xiào 有效 yǒu xiào effective General opposite for valid or effective: effective

Related words

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• 无用 wú yòng 无用 wú yòng useless Useless or in vain, close in meaning: useless

Synonyms

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• 作废 zuò fèi 作废 zuò fèi to become invalid When something becomes null and void, like a ticket or document: to become invalid

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.

例句

显示 1 条

这张票已经 无效 了。

This ticket is already invalid.

AI 生成的例句会用此图标标注。

包含 无效 的词语

• 毫无效果 毫无效果 háo wú xiào guǒ: to no avail

无效 的构成词

• 无 无 wú: not to have
• 效 效 xiào: effect