Definition of "perspicaciousness" [perspicaciousness]

• Perspicacity. (noun)

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• "In Elizabeth, for instance, Imam Heshaam Jaaber is credited with avoiding -- through dint of his personality and perspicaciousness -- riotous situations such as Newark's."
• "Her courage and perspicaciousness are second to none."
• "Portia smiled quite genuinely; she was fond of Lady O, but Simon, in company with most gentlemen of his ilk, found her perspicaciousness somewhat scarifying."