savage vs uncivilized

savage is a noun but uncivilized is not a noun.

Word	Noun	Adjective	Verb	Adverb
savage	Yes	Yes	Yes	No
uncivilized	No	Yes	No	No

As adjectives, savage and uncivilized are synonyms defined as:

Other synonyms of savage include barbarian, barbaric, uncivilised, wild.

savage (noun)	uncivilized (noun)
a member of an uncivilized people
a cruelly rapacious person

savage (adjective)	uncivilized (adjective)
(of persons or their actions) able or disposed to inflict pain or suffering	without civilizing influences
without civilizing influences
marked by extreme and violent energy
wild and menacing

savage (verb)	uncivilized (verb)
criticize harshly or violently
attack brutally and fiercely