/ Dictionary / Index M mistreat: Meaning and Definition of Find definitions for: mis•treat Pronunciation: (mis-trēt'), [key] — v.t. to treat badly or abusively. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mistreat (Thesaurus) mistranslate mistress Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language