/ Dictionary / Index I insuppressible: Meaning and Definition of Find definitions for: in•sup•press•i•ble Pronunciation: (in"su-pres'u-bul), [key] — adj. incapable of being suppressed; irrepressible: his insuppressible humor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. insupportable insurable Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language