It is impolite to other people.

这对别人来说是不礼貌的。

youdao

Talking loudly in a library is impolite.

在图书馆里大声说话是不礼貌的。

youdao

Shouting loudly to other people is impolite.

对别人大喊大叫是不礼貌的。

youdao

Your waiter is impolite.

服务员很没有礼貌。

Let's 课堂 - SpeakingMax英语口语达人

Now of course what Gisele said is impolite.

WSJ: Gisele's Super-Sized Super Gaffe

In the Western world, too little eye contact is interpreted as being impolite, insincere, or even dishonest.

FORBES: The Impact of Eye Contact

The impolite truth is that Robert Forster was The Go-Between's lesser half.

NPR: Go-Betweens' Robert Forster Goes Solo