/ Dictionary / Index T tight-mouthed: Meaning and Definition of Find definitions for: tight-mouthed Pronunciation: (tīt'moud', -moutht'), [key] — adj. tight-lipped. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tight-lipped tightrope Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language