唐突用英语怎么说

"唐突"的英文翻译是"rude"。

"Rude"是英语中表示粗鲁、不礼貌、无礼的形容词，通常用来形容一个人的举止或言辞。来源于中世纪英语中的"rud"，意思是"粗野的、粗俗的"。

例句：

He was very rude to me when I asked him for help. 他在我请求帮助时对我非常粗鲁。
She thought it was rude to interrupt when someone else was speaking. 她认为打断别人说话是不礼貌的。
It's rude to stare at people like that. 那样盯着人看是不礼貌的。