confirm Antonyms

contradict deny dispute refuse refute reject infirm repeal repudiate rescind recant rebut question interrogation invalidate leisured mail negative nullify oppose predict subvert supplant disconfirm give the lie to take the fifth recusal take a rain check uncertified unopened unsaddled move over debunk counter check undecide unincumbered unsay veto void set aside criticize negate be against impune implead challenge condemn confound confute contest