/ Thesaurus / I Synonyms of inundation Find synonyms for: Noun1. flood, inundation, deluge, alluvion, geological phenomenonusage: the rising of a body of water and its overflowing onto normally dry land; "plains fertilized by annual inundations"2. flood, inundation, deluge, torrent, batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wadusage: an overwhelming number or amount; "a flood of requests"; "a torrent of abuse"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language