shrewdness vs perspicacity

shrewdness and perspicacity both are nouns.

Word	Noun	Adjective	Verb	Adverb
shrewdness	Yes	No	No	No
perspicacity	Yes	No	No	No

As nouns, shrewdness and perspicacity are synonyms defined as:

shrewdness and perspicacity: intelligence manifested by being astute (as in business dealings)

Other synonyms of shrewdness include astuteness, perspicaciousness.

shrewdness (noun)	perspicacity (noun)
intelligence manifested by being astute (as in business dealings)	the capacity to assess situations or circumstances shrewdly and to draw sound conclusions
	intelligence manifested by being astute (as in business dealings)