ill-mannered and coarse and contemptible in behavior or appearance; "was boorish and insensitive"; "the loutish manners of a bully"; "her stupid oafish husband"; "aristocratic contempt for the swinish multitude"
disapproval If you describe a man or a boy as loutish, you are critical of them because their behaviour is impolite and aggressive. I was appalled by the loutish behaviour