barbarous

adjective

Savagely cruel; exceedingly brutal.

SYNONYMS

barbaricbasebestialblackblack-heartedbrutalbrutishcrueldarkdiabolicalferociousfiendishfierceghastlyheinoushellishhorribleinfernalinhumanlowlow-downmercilessmonstrousmurderousnastynefariousremorselessruthlesssavageviciousvilevillainouswicked