contemptuous UK /kənˈtɛm(p).tʃu.əs/US /kənˈtɛmp.t͡ʃu.əs/ adjective2 •Showing contempt; expressing disdain; showing a lack of respect.I don't know that guy, but he just gave me a contemptuous look. •(rare) Worthy of contempt; contemptible. formsmore contemptuous · most contemptuous