What is a synonym for rude?

Here are some synonyms for rude, depending on the specific nuance you want to convey:

General rudeness:

* Discourteous

* Impollite

* Uncivil

* Inconsiderate

* Insulting

* Disrespectful

* Offensive

* Boorish

* Coarse

* Ill-mannered

More aggressive rudeness:

* Abusive

* Insulting

* Scornful

* Contemptuous

* Sarcastic

* Belittling

* Mocking

More passive rudeness:

* Aloof

* Distant

* Unresponsive

* Dismissive

* Indifferent

Formal synonyms:

* Unrefined

* Barbarous

* Uncouth

The best synonym for "rude" will depend on the specific context and the level of rudeness you want to express.