negates

annihilate belie cancel out disallow disprove invalidate neutralize nullify rebut reverse undo vitiate void

abate abolish abrogate annul blackball cancel controvert countercheck cross deny ding dump frustrate gainsay impugn kill negative oppose quash redress refute repeal rescind retract revoke stonewall traverse

break with disaffirm fly in the face of put down turn down turn thumbs down

allow approve do help permit prove save validate

agree aid assist confirm corroborate enact establish go along institute keep legalize ratify sanction start support uphold