rude

Lacking in refinement or civility; bad-mannered; discourteous.

This girl was so rude towards the cashier by screaming at him for no apparent reason.

Karen broke up with Fred because he was often rude to her.

Lacking refinement or skill; untaught; ignorant; raw.

But though I be rude in speech, yet not in knowledge

Though not as shee with Bow and Quiver armd, But with such Gardning Tools as Are yet rude, Guiltless of fire had formd, or Angels brought […]

Violent; abrupt; turbulent.

a rude awakening

The Air attrite to Fire, as late the Clouds Justling or pusht with Winds rude in thir shock

Somewhat obscene, pornographic, offensive.

a rude film

rude language

Undeveloped, unskilled, inelegant.