negate

verb

ne·​gate ni-ˈgāt 

negated; negating

transitive verb

1

: to deny the existence or truth of

negated and denied her own honest reactions

—Sara H. Hay

2

: to cause to be ineffective or invalid

Alcohol can negate the effects of some medicines.

negate noun

negator

ni-ˈgā-tər 

noun

Synonyms

• contradict
• deny
• disaffirm
• disallow
• disavow
• disclaim
• disconfirm
• disown
• gainsay
• negative
• refute
• reject
• repudiate

Choose the Right Synonym for negate

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

Examples of negate in a Sentence

The fact that she lied about her work experience negated the contract.

a verb that is negated by “not”

Recent Examples on the Web

Both practices negate the rule of one-third, exposing lawns to unnecessary stress. —Kim Toscano, Southern Living, 8 June 2025

The Ballymaloe Cookbook, first published in 1977, underscores the school’s humble philosophy, formed by Allen’s mother, Myrtle: The use of fresh, high-quality ingredients negates the need for complicated or fancy techniques. —Hayley Maitland, Vogue, 7 June 2025

By stealing the momentum and largely negating the impact of Laval’s strong power play, Charlotte skated to a 5-2 victory and a 2-0 lead in the best-of-seven series. —Steve Lyttle, Charlotte Observer, 30 May 2025

It’s become a controversial aspect of the championships since match play was added in 2015, negating historic stroke play results in the name of television drama. —Mark Zeigler, San Diego Union-Tribune, 21 May 2025

Word History

Etymology

borrowed from Latin negātus, past participle of negāre "to say (with the negative of a conjoined clause), deny, withhold, say no," delocutive derivative of nec "no, not" — more at neglect entry 1

First Known Use

circa 1623, in the meaning defined at sense 1

Rhymes for negate

• abate
• airfreight
• await
• baseplate
• berate
• birthdate
• birthrate
• bookplate
• borate
• breastplate
• bromate
• casemate

Kids Definition

negate

verb

ne·​gate ni-ˈgāt 

negated; negating

1

: to deny the existence or truth of

2

: to cause to be ineffective or invalid

the discovery negates all previous theories