Synonyms of countercheck

1 Syllable
dump, ding, cross, quash, void, kill
2 Syllables
redress, deny, annul, gainsay, retract, blackball, impugn, rebut, rescind, belie, repeal, undo, cancel
3 Syllables
vitiate, negating, negate, disprove, stonewall, refute, controvert, traverse, reverse, revoke, redressed, oppose, negated, frustrate, disallow, abolish, disaffirm, nullify, abate, counteract
4 Syllables
neutralize, negative, counteracted, abrogate, neutralizing, neutralized, counteracting
5 Syllables
invalidate, annihilate