to speak harmful untruths about; speak evil of; slander; defame

to malign an honorable man.

evil in effect; pernicious; baleful; injurious

The gloomy house had a malign influence upon her usually good mood.

having or showing an evil disposition; malevolent; malicious.

adjective

aiding , benign , helpful , nice

verb

praise , uphold

adjective

antagonistic , antipathetic , bad , baleful , baneful , deleterious , despiteful , destructive , detrimental , evil , harmful , hateful , hostile , inimical , malefic , maleficent , malevolent , malignant , noxious , pernicious , rancorous , sinister , spiteful , vicious , wicked , black , malicious , mean , nasty , poisonous , venomous , cancerous , dangerous , deadly , injurious , lethal , virulent

verb

abuse , accuse , asperse , backbite * , bad-mouth * , befoul , besmirch , bespatter , blacken , calumniate , cast aspersion , curse , decry , defile , denigrate , depreciate , derogate , detract , dirty * , disparage , harm , injure , insult , misrepresent , mudsling , opprobriate , pollute , rap , revile , roast * , run down * , scandalize , slur , smear , soil , spatter * , speak ill of , stain , sully , taint , take a swipe at , tarnish , tear down , traduce , vilify , villainize , vituperate , backbite , defame , slander , antagonistic , baleful , belittle , censure , detrimental , evil , foul , hateful , hurtful , injurious , libel , malevolence , pernicious , sinister , virulent