い-Adjectives くない (Not (Adjective))
Not (Adjective)
JLPT N5
Pattern
い-adjective: ～い → ～くない
How it works
To make an い-adjective negative, replace い with くない: たかい → たかくない. Add です to be polite, or use ～くありません. いい becomes よくない.
Examples
- この へやは ひろくないです。This room isn't big.
- きょうは さむくない。It's not cold today.
Related grammar
Further reading
Bunpro N5 · Lesson 4Put your practice together
Work through a complete paper at your own pace or choose a timed mock exam. No account is needed to begin.