adjective

Threatening harm; menacing.

Bill shot a baleful glance in her direction

menacing,threatening,unfriendly,hostile,antagonistic,evil,evil-intentioned,wicked,nasty,hate-filled,bitter,acrimonious,malevolent,malicious,malignant,malign,sinister,deadly,harmful,injurious,dangerous,noxious,virulent,pernicious,venomous,poisonous,vitriolic,vindictive