Breadcrumb Home > Thesaurus > I Synonyms of irradiate Find synonyms for: Verb 1. enlighten, irradiate, prophesy, vaticinate usage: give spiritual insight to; in religion 2. irradiate, lighten, lighten up usage: cast rays of light upon 3. irradiate, ray, process, treat usage: expose to radiation; "irradiate food" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of irradiate (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: jactation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language