wild, untamed, aboriginal, ancient, archaic, barbaric, bestial, brutal, crude, cruel, feral, ferocious, fierce, fundamental, harsh, in a state of nature, lupine, native, natural, non-literate, original, primary, primeval, primitive, primordial, pristine, rough, rugged, rustic, turbulent, unbroken, uncivilized, uncultured, undomesticated, unmodified, unrestrained, unspoiled, vicious