perspicaciousness vs astuteness

perspicaciousness and astuteness both are nouns.

Word	Noun	Adjective	Verb	Adverb
perspicaciousness	Yes	No	No	No
astuteness	Yes	No	No	No

As nouns, perspicaciousness and astuteness are synonyms defined as:

perspicaciousness and astuteness: intelligence manifested by being astute (as in business dealings)

Other synonyms of perspicaciousness include perspicacity, shrewdness.

perspicaciousness (noun)	astuteness (noun)
intelligence manifested by being astute (as in business dealings)	intelligence manifested by being astute (as in business dealings)
	the intellectual ability to penetrate deeply into ideas