/ Thesaurus / C Synonyms of composite number Find synonyms for: Noun1. composite number, numberusage: an integer that is divisible without remainder by at least one positive integer other than itself and oneWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language