Translation of "Impolite" in Chinese

It's impolite to stare at people.

盯著人看是不禮貌的。

I think it is best not to be impolite.

我觉得最好不要不礼貌。

It is very impolite of her to decline our invitation.

她拒绝我们的邀请很不礼貌。

They consider it impolite to disagree with someone they don't know very well.

他们认为，去反驳一个不认识的人有些不礼貌。

Otherwise, it is considered impolite to pass food with the left hand, because the left hand is used for bathing.

否则，用左手传递食物会被认为是不礼貌的，因为左手是用来洗澡的。