Malign
WordNet
adjective
(1) Having or exerting a malignant influence
"Malevolent stars"
"A malefic force"
(2) Evil or harmful in nature or influence
"Prompted by malign motives"
"Believed in witches and malign spirits"
"Gave him a malign look"
"A malign lesion"
verb
(3) Speak unfavorably about
"She badmouths her husband everywhere"