/ Thesaurus / V Synonyms of vitiation Find synonyms for: Noun1. vitiation, nullification, overrideusage: nullification by the destruction of the legal force; rendering null; "the vitiation of the contract"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rotund Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language