Simple Definition of negate
: to cause (something) to not be effective
grammar : to make (a word or phrase) negative
Full Definition of negate
1 : to deny the existence or truth of
2 : to cause to be ineffective or invalid
negatorplay \-ˈgā-tər\ noun
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”
Origin and Etymology of negate
Latin negatus, past participle of negare to say no, deny, from neg- no, not (akin to ne- not) — more at no
First Known Use: circa 1623
Synonym Discussion of negate
Seen and Heard
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