When people are rude, they act in an impolite way towards other people or say impolite things about them.

Rude is used to describe words and behaviour that are likely to embarrass or offend people, because they relate to sex or to body functions.

If someone receives a rude shock, something unpleasant happens unexpectedly.

Objects can be described as rude when they are very simply and roughly made.

If someone is in rude health, they are strong and healthy.