la-di-da vs highfalutin

la-di-da and highfalutin both are adjectives.

Word	Noun	Adjective	Verb	Adverb
la-di-da	No	Yes	No	No
highfalutin	No	Yes	No	No

As adjectives, la-di-da and highfalutin are synonyms defined as:

la-di-da and highfalutin: affectedly genteel; to carry an air of affected importance; to be snobbish and haughty

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

la-di-da (adjective)	highfalutin (adjective)
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