also: あぶねー · あっぶねー
i-adjective
Describes a thing, place, action, or situation that may cause harm or loss. This is the basic physical or practical danger sense.
この橋は古くて危ない。
This bridge is old and dangerous.
夜に一人で歩くのは
It is dangerous to walk alone at night.
i-adjective
in danger; at risk; critical
Used when someone or something is already in a dangerous or critical state, such as a life, position, business, or situation being in jeopardy.
このままでは彼の命が危ない。
At this rate, his life is in danger.
売り上げが落ちて、会社の経営が危ない。
Sales have fallen, and the company's management is at risk.
i-adjective
uncertain; unreliable; unsteady
Less about immediate danger and more about instability, unreliability, or doubtful prospects. Common with memory, footing, chances, schedules, and similar uncertain matters.
祖父は最近、足元が危ない。
My grandfather has been unsteady on his feet lately.
このペースでは締め切りに間に合うかどうか危ない。
At this pace, it is doubtful whether we will make the deadline.
i-adjective
close call; narrow escape
Often appears as 危ないところだった, used after something nearly went wrong but was avoided.
危ないところだった。もう少しで車にひかれるところだった。
That was close. I was almost hit by a car.
interjection
look out!; watch out!; be careful!
A warning shouted when danger is immediate or about to happen. The kana or colloquial forms may appear in casual dialogue.
危ない！車が来る！
Watch out! A car is coming!
危ない、そこに触らないで！
Be careful, don't touch that!