Contemptuous one is a term used to describe someone who expresses disdain or disrespect for another person or group. The crossword solutions for this term are SCORNER, SNEERER, and FLOUTER. A scorner is someone who mocks or ridicules others, a sneerer is someone who expresses contempt through a mocking facial expression, and a flouter is someone who openly disregards rules or conventions. All three of these terms refer to someone who expresses contempt in some way.