/ Dictionary / Index M misbehave: Meaning and Definition of Find definitions for: mis•be•have Pronunciation: (mis"bi-hāv'), [key] — v., -haved, -hav•ing. —v.i. to behave badly or improperly: The children misbehaved during our visit. —v.t. to conduct (oneself&hasp;) without regard for good manners or accepted moral standards: Several of the guests misbehaved themselves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: misbehave (Thesaurus) misbegotten misbehavior 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