impolite

 
Pronunciation: /ɪmpəˈlʌɪt/

adjective

  • not having or showing good manners; rude: it would have been impolite to refuse

Derivatives

impolitely

adverb

impoliteness

noun

Origin:

early 17th century (in the sense 'unpolished'): from Latin impolitus, from in- 'not' + politus (see polite)