1
adjective (keiyoushi)
dangerous;risky;hazardous;perilous;precarious
火は非常に危ない。
Fire is very dangerous.
2
adjective (keiyoushi)
in danger;in jeopardy;critical;grave;at risk
彼の命が危ない。
His life is in danger.
3
adjective (keiyoushi)
uncertain;unreliable;insecure;unsteady;doubtful
危ない空模様だ。
The weather is threatening.
4
adjective (keiyoushi)
close (call);narrow (escape)
間一髪！危ないところでした。
That was a close call.
5
interjection (kandoushi)
look out!;watch out!;be careful!