KJV Dictionary Definition: gainsay
GAINSA'Y, v.t. Eng. against. To contradict; to oppose in words; to deny or declare not to be true what another says; to controvert; to dispute; applied to persons, or to propositions, declarations or facts.
I will give you a mouth and wisdom, which all your adversaries shall not be able to gainsay nor resist. Luke.21.
GAINSA'YING, ppr. Contradicting; denying; opposing.