One skilled in or given to controversy; a controversialist.(noun)
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Use "controvertist" in a sentence
"But, whether it be, that “small things make mean men proud,” and vanity catches small occasions; or that all contrariety of opinion, even in those that can defend it no longer, makes proud men angry; there is often found in commentaries a spontaneous strain of invective and contempt, more eager and venomous than is vented by the most furious controvertist in politicks against those whom he is hired to defame."
"For that which we have among his writings, is the performance of some other Catholic controvertist of the same age, as the learned agree."
"He became a prominent member of the whig party, and was everywhere known as the brilliant orator and successful controvertist of the Scott campaign of 1852."