Definition of negate
- negated and denied her own honest reactions
- —Sara H. Hay
- Alcohol can negate the effects of some medicines.
The fact that she lied about her work experience negated the contract.
a verb that is negated by “not”
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'negate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: to cause (something) to not be effective
grammar : to make (a word or phrase) negative
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