From The Collaborative International Dictionary of English v.0.44 [gcide]:
3. To destroy the peculiar properties or opposite dispositions of; to reduce to a state of indifference or inefficiency; to counteract; to render ineffective; as, to neutralize parties in government; to neutralize efforts, opposition, etc.
From WordNet (r) 2.0 [wn]:
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
51 Moby Thesaurus words for "neutralize": abrogate, absorb the shock, annul, balance, break the fall, bring to nothing, buffer, cancel, cancel out, come to nothing, compensate, compensate for, conquer, counteract, counterbalance, countercheck, counterpoise, countervail, cushion, damp, dampen, deaden, defeat, delete, equalize, even, frustrate, invalidate, make up for, negate, negativate, negative, nullify, offset, overcome, override, overrule, redress, show consideration, show mercy, show pity, soften, soften the blow, square, stultify, subdue, suppress, thwart, undo, vitiate, void
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