Be in contradiction with.
Dutch: logenstraffen, loochenen, ontkennen, tegenspreken, weerleggen
Prove negative; show to be false.
Make ineffective by counterbalancing the effect of:
— This action will negate the effect of my efforts.
Moby thesaurus: abate, abnegate, abolish, abrogate, agree to disagree, annihilate, annul, be at cross-purposes, be contrary to, be unmoved, be unwilling, beg off, belie, blow sky-high, blow up, break, break off, bring to naught, bring to nothing, buffer ... show more.
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