grandiose vs hifalutin

grandiose and hifalutin both are adjectives.

Word	Noun	Adjective	Verb	Adverb
grandiose	No	Yes	No	No
hifalutin	No	Yes	No	No

As adjectives, grandiose and hifalutin are synonyms defined as:

grandiose and hifalutin: affectedly genteel; to carry an air of affected importance; to be snobbish and haughty

Other synonyms of grandiose include highfalutin, highfaluting, hoity-toity, la-di-da.

grandiose (adjective)	hifalutin (adjective)
impressive because of unnecessary largeness or grandeur; used to show disapproval	affectedly genteel; to carry an air of affected importance; to be snobbish and haughty
affectedly genteel; to carry an air of affected importance; to be snobbish and haughty