/ Thesaurus / S Synonyms of science fiction Find synonyms for: Noun1. science fiction, fantasy, phantasyusage: literary fantasy involving the imagined impact of science on societyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language