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無效

简无效 · 繁無效

Mandarin · pinyin wú xiào

not valid
ineffective
in vain

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Characters in this entry

無: Look up this written character
效: xiào · result, effect; effectiveness
无: wú · negative, no, not; Kangxi radical 71

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

2–4 · wu2 xiao4

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Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

無效 · find source passages ↗ · 无效 · find source passages ↗

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

mou4 haau6

Cantonese word readings for 無效. This lexicon supplies readings, not definitions.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

verb

to be invalid; to be ineffective; to prove ineffectual

Source page · dump 2026-09-02 · Contributors & history

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