barbarian vs peasant

barbarian and peasant both are nouns.

Word	Noun	Adjective	Verb	Adverb
barbarian	Yes	Yes	No	No
peasant	Yes	No	No	No

As nouns, barbarian and peasant are synonyms defined as:

barbarian and peasant: a crude uncouth ill-bred person lacking culture or refinement

Other synonyms of barbarian include boor, churl, Goth, tike, tyke.

barbarian (noun)	peasant (noun)
a member of an uncivilized people	a country person
a crude uncouth ill-bred person lacking culture or refinement	a crude uncouth ill-bred person lacking culture or refinement
	one of a (chiefly European) class of agricultural laborers

barbarian (adjective)	peasant (adjective)
without civilizing influences