Synonyms:1. See dull. 2. short, gruff, rough, rude, uncivil, impolite.
Blunt, bluff, brusque, curt characterize manners and speech.
Blunt suggests lack of polish and of regard for the feelings of others:
blunt and tactless. Bluff implies an unintentional roughness together with so much good-natured heartiness that others rarely take offense:
a bluff sea captain. Brusque connotes sharpness and abruptness of speech or manner:
a brusque denial. Curt applies esp. to disconcertingly concise language:
a curt reply. 3. dimwitted, thick, stolid.
4. dull.
[bluhnt] 
adjective, -er, -est, verb, noun 