/ Thesaurus / W Synonyms of wise guy Find synonyms for: Noun1. wise guy, smart aleck, wiseacre, wisenheimer, weisenheimer, upstartusage: an upstart who makes conceited, sardonic, insolent commentsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inane Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language