- 1negate something to stop something from having any effect synonym nullify Alcohol negates the effects of the drug.
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- 2negate something to state that something does not exist
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NAmE//nɪˈɡeɪt//
(formal)Verb Forms present simple I / you / we / they negate he / she / it negates
past simple negated
-ing form negating
Check pronunciation: negate