elevated vs rarefied

elevated is a noun but rarefied is not a noun.

Word	Noun	Adjective	Verb	Adverb
elevated	Yes	Yes	No	No
rarefied	No	Yes	No	No

As adjectives, elevated and rarefied are synonyms defined as:

elevated and rarefied: of high moral or intellectual value; elevated in nature or style

Other synonyms of elevated include exalted, grand, high-flown, high-minded, idealistic, lofty, noble-minded, rarified, sublime.

elevated (noun)	rarefied (noun)
a railway that is powered by electricity and that runs on a track that is raised above the street level

elevated (adjective)	rarefied (adjective)
increased in amount or degree	of high moral or intellectual value; elevated in nature or style
of high moral or intellectual value; elevated in nature or style	having low density
raised above the ground