high-flown vs lofty

high-flown and lofty both are adjectives.

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

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

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

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

high-flown (adjective)	lofty (adjective)
of high moral or intellectual value; elevated in nature or style	of imposing height; especially standing out above others
pretentious (especially with regard to language or ideals)	having or displaying great dignity or nobility
	of high moral or intellectual value; elevated in nature or style