Nouns

(n)savage, barbariana member of an uncivilized people
(n)peasant, barbarian, boor, churl, Goth, tyke, tikea crude uncouth ill-bred person lacking culture or refinement

Adjectives

(s)barbarian, barbaric, savage, uncivilized, uncivilised, wildwithout civilizing influences“barbarian invaders”, “barbaric practices”, “a savage people”, “fighting is crude and uncivilized especially if the weapons are efficient” (Margaret Meade), “wild tribes”