/ Dictionary / Index M misfunction: Meaning and Definition of Find definitions for: mis•func•tion Pronunciation: (mis-fungk'shun), [key] — n., v.i. malfunction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: misfunction (Thesaurus) misfortune misgive Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language