Breadcrumb Home > Thesaurus > O Synonyms of overheat Find synonyms for: Verb 1. overheat, heat, hot up, heat up usage: get excessively and undesirably hot; "The car engines overheated" 2. overheat, heat, heat up usage: make excessively or undesirably hot; "The room was overheated" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of overheat (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: oleaginous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language