/ Thesaurus / F Synonyms of fantasise Find synonyms for: Verb1. fantasy, fantasize, fantasise, imagine, conceive of, ideate, envisageusage: indulge in fantasies; "he is fantasizing when he says he plans to start his own company"2. fantasize, fantasise, imagine, conceive of, ideate, envisageusage: portray in the mind; "he is fantasizing the ideal wife"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language