adj. 25B6; adjective RUDE, impolite, ill-mannered, bad-mannered, disrespectful, uncivil, unmannerly, unchivalrous, ungentlemanly, unladylike, ill-bred, churlish, boorish, crass, ungracious, graceless, uncouth; insolent, impudent, cheeky, audacious, presumptuous; curt, brusque, blunt, offhand, unceremonious, short, sharp; informal ignorant; archaic malapert.
polite.