Noun:

बदनामी लगानेवाला, अपवादक,

calumniators's Usage Examples:

It appears that Peisistratus was benevolent to the last, and, like Julius Caesar, showed no resentment against enemies and calumniators.

They further declared that all who affirmed that heresy existed in Bohemia were " liars, vile traitors and calumniators of Bohemia and Moravia, the worst of all heretics, full of all evil, sons of the devil."

Celsus does not indeed repeat the Thyestean charges so frequently brought against Christians by their calumniators, but he says the Christian teachers who are mainly weavers and cobblers have no power over men of education.