/ Dictionary / Index I inundate: Meaning and Definition of Find definitions for: in•un•date Pronunciation: (in'un-dāt", -un-, in-un'dāt), [key] — -dat•ed, -dat•ing. to flood; cover or overspread with water; deluge. to overwhelm: inundated with letters of protest. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inundate (Thesaurus) inundant Inupiaq 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