maan6 mou4 jat1 sat1萬無一失万无一失

Jyutpingmaan6 mou4 jat1 sat1

Yalemaahn mòuh yāt sāt

語句Rare

Definition

Absolutely foolproof, surefire, or perfectly safe; with zero risk of failure.

neutraldescriptions

How it's used

This idiom is frequently used to express confidence in a plan or a strategy. It carries a strong sense of certainty, often used when someone wants to reassure others that a situation is under control and free from potential errors. It is common to pair this with phrases that emphasize thorough preparation.

Examples

zi2只jiu3要zeon2準bei6備cung1充zuk1足，zou6做ni1呢go3個gai3計waak6劃zau6就maan6萬mou4無jat1一sat1失㗎gaa2喇。

As long as we are well-prepared, this plan will be foolproof.

nei5你kok3確ding6定ni1呢go3個fong1方faat3法maan6萬mou4無jat1一sat1失？

Are you sure this method is absolutely foolproof?

Common phrases

gai3計waak6劃maan6萬mou4無jat1一sat1失

the plan is foolproof

Common mistake

Learners often mistake this for a simple adjective, but it is a four-character idiom that functions as a predicate. Avoid using it to describe a person, as it is meant to describe the reliability of a plan, action, or outcome.