Definition of "gainsayer" [gain•say•er]

• One who contradicts or denies what is alleged; an opposer. (noun)
• A person who gainsays others; a disagreeable person. (noun)

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• "If he had been interested only in anointing himself a gainsayer of modern art, he could have simply refused to make art at all and confined himself to showing up at gallery openings dressed as Savonarola."
• "Nor is it open to the gainsayer to contend that they were kings indeed but of some chance city."
• "And I do not see how they can argue with any one, or ever convince a gainsayer who makes use of the same plea, without setting down strict boundaries between faith and reason; which ought to be the first point established in all questions where faith has anything to do."