N567/133

じゃない

Noun + じゃないNa-adjective + じゃないSentence with です/だ in negative form (colloquial)

Meanings

  • is not
  • isn't

About this pattern

Explanation

じゃない is the informal negative form of the copula だ. It negates statements about what something is. Use it after nouns and na-adjectives (where the noun/na-adjective is the thing being described). It is the casual counterpart to ではない. Do not use じゃない with i-adjectives; for those, use くない or くありません in polite form. Common in everyday speech for simple negation and when not using polite form.

Learn in context

Example sentences

彼は学生じゃない。

He is not a student.

これは本じゃない。

This is not a book.

あの人は先生じゃない。

That person isn’t a teacher.