“不欢而散”，汉语成语，指很不愉快地分手、分开、散场。可以翻译为“break up in discord，break up on bad terms或part unhappily”等。

例句：

会谈不欢而散。

The talks broke down in discord.

他们性格不合，最终不欢而散。

Their personalities were incompatible and they finally broke up in discord.