Noun perspicaciousness has 1 sense

• perspicaciousness(n = noun.cognition) astuteness, perspicacity, shrewdness - intelligence manifested by being astute (as in business dealings); Array
is a kind of intelligence
has particulars: craft, craftiness, cunning, foxiness, guile, slyness, wiliness, acumen, insightfulness, knowingness, street smarts
Derived forms adjective perspicacious₂, adjective perspicacious₁