/ Dictionary / Index M misteach: Meaning and Definition of Find definitions for: mis•teach Pronunciation: (mis-tēch'), [key] — -taught, -teach•ing. to teach wrongly or badly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mistcoat mister Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language