Adjectives

(a)ideal, idealisticof or relating to the philosophical doctrine of the reality of ideas
(s)exalted, elevated, sublime, grand, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-mindedof 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”