ADJ-GRADED 不礼貌的;傲慢的;莽撞的 If someone talks or behaves in a rather impolite and disrespectful way, you can say that they are being impertinent . 不礼貌的;傲慢的;莽撞的
Would it be impertinent to ask where exactly you were?.
能冒昧问一下您所在的确切位置吗?
I don't like strangers who ask impertinent questions.