negate

1 to declare not to be true this evidence negates his claim that he was not at the scene of the crime Synonyms contradict, disaffirm, disallow, disavow, disclaim, disconfirm, disown, gainsay, deny, negative, refute, reject, repudiateRelated Words traverse; challenge, confute, disprove, rebut; disagree (with), disputeNear Antonyms accept, adopt, embrace, espouse; affirm, announce, assert, aver, claim, declare, maintain, profess, submit; authenticate, corroborate, substantiate, validate, verifyAntonyms acknowledge, admit, allow, avow, concede, confirm, own

2 to put an end to by formal action Prohibition was established by the 18th amendment to the U.S. Constitution, only to be negated by the 21st amendment 13 years later Synonyms abate, abrogate, annul, avoid, cancel, disannul, dissolve, invalidate, abolish, null, nullify, quash, repeal, rescind, roll back, strike down, vacate, voidRelated Words countermand, override, overrule, overturn, veto; abort, call, call off, drop, recall, retract, reverse, revoke, suspend, withdraw; ban, enjoin, forbid, outlaw, prohibit; disallow, dismiss, reject; annihilate, break down, eliminate, eradicate, erase, liquidate, remove, throw out, write offNear Antonyms enact, lay down, legislate; establish, found, institute; formalize, legalize, legitimate, legitimize, validate; pass, ratify; allow, approve, authorize, clear, endorse (also indorse), permit, sanction, warrant; command, decree, mandate, order, prescribe

3 to think not to be true or real you simply can't negate your feelings for someone, even if they don't feel the same way about you Synonyms discredit, disbelieveRelated Words deny, reject, repudiate; distrust, doubt, mistrust, suspect; debunk, disprove, refute; deride, pooh-pooh (also pooh), scoff (at)Near Antonyms trustAntonyms accept, believe, credit, swallow