See barbarous in Webster's New World Roget's A-Z Thesaurus II
adjective
Not civilized:
barbarian, barbaric, primitive, rude, savage, uncivilized, uncultivated, uncultured, wild. (Archaic) uncivil. See culture, wildShowing or suggesting a disposition to be violently destructive without scruple or restraint:
bestial, cruel, fell2, feral, ferocious, fierce, inhuman, savage, truculent, vicious, wolfish. See kind
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