/ Thesaurus / O Synonyms of on fire Find synonyms for: Adjective1. ablaze(predicate), afire(predicate), aflame(predicate), aflare(predicate), alight(predicate), on fire(predicate), lighted (vs. unlighted), litusage: lighted up by or as by fire or flame; "forests set ablaze (or afire) by lightning"; "even the car's tires were aflame"; "a night aflare with fireworks"; "candles alight on the tables"; "houses on fire"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language