very annoying, unpleasant, or uncomfortable, and therefore extremely difficult to bear

She disliked the president, whom she once described as an "insufferable bore". 她不喜欢总裁，曾经说他是个“令人难以忍受的讨厌家伙”。

The underground is insufferable in this heat. 这么热的天坐地铁让人无法忍受。

Synonyms: impossible intolerableunbearableunendurable