i-adjective
unbearable; intolerable; insufferable
Expresses that a situation, behavior, or feeling is so unpleasant or frustrating that one cannot endure it. Often used with ~て form of verbs or with nouns marked by が/は.
彼の無責任な態度が我慢ならない。
His irresponsible attitude is unbearable.
この暑さはもう我慢ならない。
I can't stand this heat anymore.