· be in contradiction with
Synonym(s): contradict, belie
Hypernym(s): deviate, vary, diverge, depart
· deny the truth of
Synonym(s): contradict, contravene
Hypernym(s): disagree, differ, dissent, take_issue
· prove negative; show to be false
Synonym(s): contradict
Hypernym(s): prove, demonstrate, establish, show, shew
Antonym(s): affirm
· make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"
Synonym(s): neutralize, neutralise, nullify
Hypernym(s): weaken