RAREFIED

exalted, elevated, sublime, grand, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-minded

(adjective) of high moral or intellectual value; elevated in nature or style; “an exalted ideal”; “argue in terms of high-flown ideals”- Oliver Franks; “a noble and lofty concept”; “a grand purpose”

rare, rarefied, rarified

(adjective) having low density; “rare gasses”; “lightheaded from the rarefied mountain air”

RAREFY

rarefy, attenuate

(verb) weaken the consistency of (a chemical substance)

rarefy, sublimate, subtilize

(verb) make more subtle or refined

rarefy

(verb) lessen the density or solidity of; “The bones are rarefied”

Source: WordNet® 3.1

Adjective

rarefied (comparative more rarefied, superlative most rarefied)

Distant from the lives and everyday concerns of ordinary people; esoteric, exclusive, select.

Elevated in style or nature, sublime; of high intellectual or moral value.

(of a gas etc.) Less dense than usual; thin.

Verb

rarefied

simple past tense and past participle of rarefy

Source: Wiktionary

RAREFY

Rar"e*fy, v. t. [imp. & p. p. Rarefied; p. pr. & vb. n. Rarefying.] Etym: [F. raréfier; L. rarus rare + -ficare (in comp.) to make; cf. L. rarefacere. See -fy.]

Definition: To make rare, thin, porous, or less dense; to expand or enlarge without adding any new portion of matter to; -- opposed to condense.

Rar"e*fy, v. i.

Definition: To become less dense; to become thin and porous. "Earth rarefies to dew." Dryden.

Source: Webster’s Unabridged Dictionary 1913 Edition