'rarified' definitions:

Having low density; "rare gasses"; "lightheaded from the rarefied mountain air" [syn: rare, rarefied, rarified]

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" [syn: exalted, elevated, sublime, grand, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-minded]