malevolent
adjective
she shot a malevolent glare at her companion:
malicious, spiteful, hostile, evil-minded, baleful, bitter, evil-intentioned, poisonous, venomous, evil, malign, malignant, rancorous, vicious, vindictive, revengeful, vengeful, pernicious;
cruel, fierce, nasty, unfriendly, unkind, ill-natured;
literary malefic, maleficent.
▷antonyms benevolent.
malevolent Oxford Dictionary of English