Adjacent Words

Nullify definitions

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Webster's 1828 Dictionary

NUL'LIFY, v.t. [L. none, and to make.] To annul; to make void; to render invalid; to deprive of legal force or efficacy.

WordNet (r) 3.0 (2005)

v
1: declare invalid; "The contract was annulled"; "void a plea" [syn: invalidate, annul, quash, void, avoid, nullify] [ant: formalise, formalize, validate]
2: show to be invalid [syn: invalidate, nullify] [ant: validate]
3: make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts" [syn: neutralize, neutralise, nullify, negate]

Merriam Webster's

transitive verb (-fied; -fying) Etymology: Late Latin nullificare, from Latin nullus Date: 1595 1. to make null; especially to make legally null and void 2. to make of no value or consequence Synonyms: nullify, negate, annul, abrogate, invalidate mean to deprive of effective or continued existence. nullify implies counteracting completely the force, effectiveness, or value of something <a penalty nullified the touchdown>. negate implies the destruction or canceling out of each of two things by the other <the arguments negate each other>. annul suggests making ineffective or nonexistent often by legal or official action <the treaty annuls all previous agreements>. abrogate is like annul but more definitely implies a legal or official act <a law to abrogate trading privileges>. invalidate implies making something powerless or unacceptable by declaration of its logical or moral or legal unsoundness <the court invalidated the statute>.

Oxford Reference Dictionary

v.tr. (-ies, -ied) make null; neutralize, invalidate, cancel. Derivatives: nullification n. nullifier n.

Webster's 1913 Dictionary

Nullify Nul"li*fy, v. t. [imp. & p. p. Nullified; p. pr. & vb. n. Nullifying.] [L. nullificare; nullus none + -ficare (in comp.) to make. See Null, a., and -fy.] To make void; to render invalid; to deprive of legal force or efficacy. Such correspondence would at once nullify the conditions of the probationary system. --I. Taylor. Syn: To abrogate; revoke; annul; repeal; invalidate; cancel. See Abolish.

Collin's Cobuild Dictionary

(nullifies, nullifying, nullified) 1. To nullify a legal decision or procedure means to declare that it is not legally valid. (FORMAL) He used his broad executive powers to nullify decisions by local governments... It is worth remembering that previous wills are nullified automatically upon marriage. = invalidate VERB: V n, V n 2. To nullify something means to make it have no effect. (FORMAL) He may be able to nullify that disadvantage by offering a wider variety of produce... = negate VERB: V n

Soule's Dictionary of English Synonyms

v. a. Annul, invalidate, cancel, abrogate, repeal, make void, make of no effect, abolish, revoke.

Moby Thesaurus

abate, abjure, abolish, abrogate, absolve, annihilate, annul, assert the contrary, belie, bring to naught, bring to nothing, buffer, cancel, cancel out, come to nothing, compensate, confine, contest, contradict, contravene, controvert, counter, counteract, counterbalance, countermand, counterorder, countervail, cross, declare a moratorium, deny, disaffirm, disallow, disannul, disavow, disclaim, disown, disprove, dispute, do away with, forswear, frustrate, gainsay, impugn, invalidate, join issue upon, limit, make void, negate, negativate, negative, neutralize, not accept, not admit, obliterate, offset, oppose, override, overrule, quash, recall, recant, refuse to admit, refute, renege, renounce, repeal, repudiate, rescind, restrict, retract, reverse, revoke, set aside, stultify, suspend, take back, take issue with, thwart, undo, vacate, vitiate, void, waive, wipe out, withdraw, write off