Uncivil (adjective)

Not polite or courteous in behavior or language.

Origin:

From un- + civil.

Examples:

1. His uncivil tone during the meeting was not appreciated.
2. The uncivil behavior of the protesters caused the police to intervene.
3. Her uncivilized manners were a source of embarrassment.
4. The uncivilized conditions in the refugee camp were a humanitarian crisis.
5. The uncivilized attitude of the settlers towards the native population was reprehensible.