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萬無一失

简万无一失 · 繁萬無一失

Mandarin · pinyin wàn wú yī shī

surefire; absolutely safe (idiom)

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Characters in this entry

萬: Look up this written character
無: Look up this written character
一: yī · one; a, an; alone
失: shī · lose; make mistake, neglect
万: wàn · mò · ten thousand; innumerable
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

4–2–1–1 · wan4 wu2 yi1 shi1

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

maan6 mou4 jat1 sat1

Cantonese word readings for 萬無一失. 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.

phrase

(idiomatic) infallible; surefire; a hundred percent safe

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

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