lacking refinement or cultivation or taste; "he had coarse manners but a first-rate mind"; "behavior that branded him as common"; "an untutored and uncouth human being"; "an uncouth soldier--a real tough guy"; "appealing to the vulgar taste for violence"; "the vulgar display of the newly rich"
disapproval If you describe a person as uncouth, you mean that their behaviour is rude, noisy, and unpleasant. = coarse. behaving and speaking in a way that is rude or socially unacceptable