v. 25B6; verb
they negated the court's ruling : INVALIDATE, nullify, neutralize, cancel; undo, reverse, annul, void, revoke, rescind, repeal, retract, countermand, overrule, overturn; Law avoid; formal abrogate.
he negates the political nature of education : DENY, dispute, contradict, controvert, refute, rebut, reject, repudiate; formal gainsay.
validate, confirm.