From Longman Dictionary of Contemporary Englishbestialbes‧ti‧al /ˈbestiəl $ ˈbestʃəl/ adjective literary CRUELbehaving like an animal, especially in a cruel way bestial and barbaric acts —bestially adverb
Examples from the Corpus
bestial• Until recently, Camille would have responded to a rebuke with a display of bestial ferocity.• Milton has already dispelled our traditional view of an awesome, bestial figure, in favour of one who possesses a destroyed beauty.• In each the primitive, sometimes bestial is joined obdurately to the modern and sophisticated.• His evil and bestial nature stands directly opposed to our just and civilised culture.• One entire flank of the Witch King's army was held by Chaos Knights and their bestial retinues.Origin bestial (1300-1400) Old French Latin bestialis, from bestia “beast” 