very annoying, unpleasant, or uncomfortable, and therefore extremely difficult to bear难以忍受的,不能容忍的
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。