ruder
形容词 rude:
socially incorrect in behavior
同义词:ill-mannered, bad-mannered, rude, unmannered, unmannerly
(of persons) lacking in refinement or grace
同义词:ill-bred, bounderish, lowbred, rude, underbred, yokelish
lacking civility or good manners- Willa Cather
(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
belonging to an early stage of technical development; characterized by simplicity and (often) crudeness