rebut
verb
the shadow chancellor rebutted the prime minister's allegations:
refute, deny, disprove, prove wrong, prove false;
invalidate, negate, contradict, counter, discredit, give the lie to, drive a coach and horses through, quash, explode, shoot down, destroy;
informal shoot full of holes, blow sky-high;
rare controvert, confute, negative.
▷antonyms confirm.
rebut Oxford Dictionary of English