/ Dictionary / Index P pent-up: Meaning and Definition of Find definitions for: pent-up Pronunciation: (pent'up'), [key] — adj. confined; restrained; not vented or expressed; curbed: pent-up emotions; pent-up rage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pent-up (Thesaurus) pentstemon pentyl Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language