万无一失
wàn wú yī shī
HSK 3.0 Level 7
Uncommon
Definitions
- 1. surefire; absolutely safe (idiom)
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Word relationships
Usage notes
Common mistakes
Don't confuse 失 (lose) with 先 (first); the idiom means 'not one mistake in ten thousand'.
Example Sentences
1 shown这个计划 万无一失 。
This plan is absolutely foolproof.
AI-generated examples are marked with this icon.