Definition
万无一失 (wàn wú yī shī) means 'surefire, absolutely safe' — it describes a plan or system with zero risk of failure. Unlike 无忧无虑 (wú yōu wú lǜ), which refers to a carefree state of mind, 万无一失 focuses on practical certainty and safety, often used for precautions and backups.
phrase
surefireabsolutely safefoolproof
Examples
- ，万无一失。Zhège jìhuà ānpái de shífēn zhōumì, kěyǐ shuō shì wàn wú-yì shī.This plan is arranged very meticulously; you could call it foolproof.
- 万无一失，。Wèile wàn wú-yì shī, wǒmen jiǎnchá le sān biàn mìmǎ.To be absolutely safe, we checked the password three times.
- ，万无一失。Zhège xìtǒng cǎiyòng duōchóng bèifēn, zuòdào wàn wú-yì shī.This system uses multiple backups to achieve zero risk.
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