maligner

ma·lign

M0061200 (mə-līn′)tr.v. ma·ligned, ma·lign·ing, ma·ligns To make evil, harmful, and often untrue statements about (someone).adj.1. Evil or harmful in nature or effect: "He felt that the malign influence of the house had governed his own disintegration" (Thomas Wolfe).2. Intending or threatening harm or ill will; malevolent: "a snarling, bickering husky ... heavy-chested, with a malign eye" (Jack London).

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[Middle English malignen, to attack, from Old French malignier, from Late Latin malignārī, from Latin malignus, malign; see genə- in Indo-European roots. Adj., from Middle English, from Old French, from Latin malignus.]

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ma·lign′er n.ma·lign′ly adv.Synonyms: malign, defame, traduce, vilify, slander, calumniate, libel
These verbs mean to make evil, harmful, often untrue statements about another. Malign stresses malicious intent: "Have I not taken your part when you were maligned?" (William Makepeace Thackeray).
Defame suggests damage to reputation through misrepresentation: The plaintiff had been defamed and had legitimate grounds for a lawsuit.
Traduce connotes the humiliation or disgrace resulting from such damage: "My character was traduced by Captain Hawkins ... even the ship's company cried out shame" (Frederick Marryat).
Vilify pertains to open, deliberate, vicious defamation: "As long as there have been personal fouls and holding penalties, sports fans have vilified referees for making bad calls" (Jason Zinoman).
Slander and calumniate apply to oral expression: He slandered his political opponent. She calumniated and ridiculed her former employer.
Libel involves the communication of written or pictorial material: The celebrity sued the tabloid that libeled her.

Thesaurus

Noun

1.

maligner - one who attacks the reputation of another by slander or libelbackbiter, defamer, libeler, slanderer, traducer, vilifierdepreciator, detractor, disparager, knocker - one who disparages or belittles the worth of something

Translations

calunniatore