if somebody’s behaviour is unforgivable, it is so bad or unacceptable that you cannot forgive the person synonym inexcusable不可原谅的;难以饶恕的 It was an unforgivable thing to say. 那么说真是不可原谅。 an unforgivable act of violence 不可原谅的暴力行为 The prime minister described the bombing as unforgivable. 首相称这次爆炸是不可原谅的。
Oxford Collocations DictionaryUnforgivable is used with these nouns:- sin