perspicacious

per·spi·ca·cious  (pûrsp-kshs)

adj.

Having or showing penetrating mental discernment; clear-sighted. See Synonyms at shrewd.

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[From Latin perspicx, perspicc-, from perspicere, to look through; see perspective.]

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perspi·cacious·ly adv.

perspi·cacious·ness n.

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perspicacious

Adjective

Formal acutely perceptive or discerning [Latin perspicax]

perspicacity n

Thesaurus

Adj.	1.	perspicacious - acutely insightful and wise; "much too perspicacious to be taken in by such a spurious argument"; "observant and thoughtful, he was given to asking sagacious questions"; "a source of valuable insights and sapient advice to educators" sagacious, sapient wise - having or prompted by wisdom or discernment; "a wise leader"; "a wise and perceptive comment"
	2.	perspicacious - mentally acute or penetratingly discerning; "too clear-eyed not to see what problems would follow"; "chaos could be prevented only by clear-sighted leadership"; "much too perspicacious to be taken in by so spurious an argument" clear-eyed, clear-sighted discerning - having or revealing keen insight and good judgment; "a discerning critic"; "a discerning reader"