/ Dictionary / Index M misbecome: Meaning and Definition of Find definitions for: mis•be•come Pronunciation: (mis"bi-kum'), [key] — -came, -come, -com•ing. to be unsuitable, unbecoming, or unfit for. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. misarrange misbegotten Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language