/ Thesaurus / M Synonyms of malfunctioning Find synonyms for: Verb1. malfunction, misfunction, fail, go bad, give way, die, give out, conk out, go, break, break downusage: fail to function or function improperly; "the coffee maker malfunctioned"Adjective1. malfunctioning (vs. functioning), nonfunctional, amiss(predicate), awry(predicate), haywire, wrong(predicate), bad, defective, out of whack, run-downusage: not performing or able to perform its regular function; "a malfunctioning valve"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language