idealistic vs high-flown

idealistic and high-flown both are adjectives.

Word	Noun	Adjective	Verb	Adverb
idealistic	No	Yes	No	No
high-flown	No	Yes	No	No

As adjectives, idealistic and high-flown are synonyms defined as:

idealistic and high-flown: of high moral or intellectual value; elevated in nature or style

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

idealistic (adjective)	high-flown (adjective)
of or relating to the philosophical doctrine of the reality of ideas	of high moral or intellectual value; elevated in nature or style
of high moral or intellectual value; elevated in nature or style	pretentious (especially with regard to language or ideals)