Japanese i-adjective

atsui — hot 暑い

Explore the principal positive, negative, past, non-past and conditional forms of this Japanese adjective.

How i-adjectives conjugate

The final changes to create negative, past and connecting forms. The adjective itself carries this grammatical information, so a separate verb is not required in the plain forms.

Conjugation table

The English glosses are approximate; the natural translation depends on the surrounding sentence.

Form Style Positive Negative
Present (non-past) Plain is hot atsui 暑い is not hot atsukunai 暑くない
Polite atsui desu 暑いです atsukunai desu 暑くないです
Past Plain was hot atsukatta 暑かった was not hot atsukunakatta 暑くなかった
Polite atsukatta desu 暑かったです atsukunakatta desu 暑くなかったです
Presumptive Plain will probably be hot atsui darō 暑いだろう atsukunai darō 暑くないだろう
Polite atsui deshō 暑いでしょう atsukunai deshō 暑くないでしょう
Conditional Standard if it is hot atsukereba 暑ければ if it is not hot atsukunakereba 暑くなければ
Connecting form Standard atsukute 暑くて atsukunakute 暑くなくて

These conjugations are generated automatically and are intended as a learning guide. Check the natural usage in context when accuracy is important.