In a sagacious manner, in a way that is clever, shrewd, observant, keen of intellect or discernment, cunning or with ability and aptitude; sagely.(adverb)
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Use "sagaciously" in a sentence
"Chodin sagaciously observes: Lance has never lost a thumb wrestle."
"As Captain Bunting sagaciously remarked, "most things come to a climax suddenly.""
""If I am so -- so pretty," she said slowly, to herself, "people ought to like me, and," sagaciously, "I must be pretty or he would not say so.""