Definition of いけない
-
(exp) wrong; not good; of no use
「風邪気味です」「それはいけませんね」
"I've a touch of a cold." "That's too bad." - hopeless; past hope
- must not do
Words related to いけない
- (exp) have to do; must; should; ought to
- (adj-i) innocent; helpless; tender
-
(exp) cannot do without something; indispensable; absolutely necessary
君はもう大人なんだから、もっと分別がなくてはいけない。
Now that you are grown-up, you ought to know better. -
(after negative base of verb) have to do
すぐに手紙をかかなきゃいけないよ。
You've got to write to him quickly.
- (exp) impossible to do (although wants to)
