sudden and unexpected, often in an unpleasant way 突然的；意外的 an abrupt change/halt/departure 突然改变；骤然停顿；突然离去 The accident brought his career to an abrupt end. 那起事故使他的职业生涯突然结束了。
Extra ExamplesHis abrupt departure made me think I had done something to upset him. 他突然离去，让我觉得自己惹他生气了。 The abrupt change of subject disconcerted her. 话题突然改变令她摸不着头脑。
speaking or acting in a way that seems rude and unfriendly; not taking time to say more than is necessary （言语、行为）粗鲁的，莽撞的，唐突的；生硬的 an abrupt manner 唐突的举止 He indicated Isabel with an abrupt movement of his head. 他晃了一下脑袋，头指向伊莎贝尔。 - abrupt with somebody
She was very abrupt with me in our meeting. 我们会面时，她跟我说话非常生硬。
Word Originlate 16th cent.: from Latin abruptus ‘broken off, steep’, past participle of abrumpere, from ab- ‘away, from’ + rumpere ‘break’.