The Collaborative International Dictionary
Impugner
Impugner \Im*pugn"er\, n. One who impugns.
Wiktionary
impugner
n. One who impugns; one who opposes or contradicts.
Usage examples of "impugner".
The tiny vessel now resting undisturbed on the surface below was a very visible debunker of the first accomplishment and impugner of the latter.
He said, that by giving satisfaction to the impugners of his conduct in that House, he did not mean that he would fight, but that he would explain his conduct.
If the, impugners of the utilitarian morality represented it to their own minds in this its, true character, I know not what recommendation possessed by any other morality they could possibly affirm to be wanting to it.