polar vs Antarctic

polar is not a noun while Antarctic is a noun.

Word	Noun	Adjective	Verb	Adverb
polar	No	Yes	No	No
Antarctic	Yes	Yes	No	No

polar (noun)	Antarctic (noun)
	the region around the south pole: Antarctica and surrounding waters

polar (adjective)	Antarctic (adjective)
of or existing at or near a geographical pole or within the Arctic or Antarctic Circles	at or near the south pole
located at or near or coming from the earth's poles
having a pair of equal and opposite charges
extremely cold
being of crucial importance
characterized by opposite extremes; completely opposed