1. discourteous Bluff is a word of good meaning, as are frank and open. The bluff man talks and laughs loudly and freely, says and does whatever he pleases with fearless good nature, and with no thought of a Synonyms: bluff, abrupt, brusk, impolite, rough, blunt, coarse, inconsiderate, rude, blustering, discourteous, open, uncivil, bold, frank, plain-spoken, unmannerly Antonyms: bland, genial, polished, polite, refined, reserved, urbane, courteous