N5 grammar
〜くない
kunai
Negative i-adjectives
Formationi-adjective, い to くない (+ です)
An i-adjective goes negative by trading its final い for くない. Politeness comes from adding です afterwards, not from changing the adjective. This is where the two adjective types part company, so it is worth practising against じゃない.
Examples
〜くない is marked in each sentence. Tap any word for its dictionary entry.
恥ずかしくないのですか。
Are not you ashamed of yourself?
この車はあれほど良くない。
This car is not so nice as that one.
そんなに薄着で寒くないですか。
In such thin clothes, are you warm enough?
彼はお兄さんほど背が高くない。
He is not as tall as his brother.
たいして楽しくなかった。
We didn't have much fun.