/ Dictionary / Index I indubitable: Meaning and Definition of Find definitions for: in•du•bi•ta•ble Pronunciation: (in-d'bi-tu-bul, -dy'-), [key] — adj. that cannot be doubted; patently evident or certain; unquestionable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: indubitable (Thesaurus) indri induc. Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language