/ Thesaurus / N Synonyms of nullified Find synonyms for: Verb1. invalidate, annul, quash, void, avoid, nullify, cancel, strike downusage: declare invalid; "The contract was annulled"; "void a plea"2. invalidate, nullify, negate, contradictusage: show to be invalid3. neutralize, neutralise, nullify, negate, weakenusage: make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"Adjective1. invalidated, nullified, invalid (vs. valid)usage: deprived of legal forceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language