Japanese DictionaryDefinition of 危ない
- (adj-i) dangerous; risky; hazardous; perilous; precarious
- in danger; in jeopardy; critical; grave; at risk
彼は命が危ない。
His life is in danger. - uncertain; unreliable; insecure; unsteady; doubtful
危ない空模様だ。
The weather is threatening. - close (i.e. a close call); narrow
間一髪！危ないところでした。
That was a close call. - (int) look out!; watch out!
危ない！トラックが来るぞ！
Look out! There's a truck coming!
