calumnious

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

adjective (used of statements) harmful and often untrue; tending to discredit or malign

From Late Latin calumniōsus.

The results of your denunciation will be stifled, because they are calumnious. — The Wandering Jew — Complete, Eugène Sue
Then he might easily be dangerous--then he would hit out and become calumnious. — A London Life, and Other Tales, Henry James
"To prove that the assertion is calumnious," replied he, "I have only to do this." — The New Pun Book, Unknown

calumniatory, defamatory, denigrative, denigrating, denigratory, libellous, libelous, slanderous

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