Thesaurus

nullify

verb

Synonym Discussion of nullify

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


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