Perspicacious

a.	1.	Having the power of seeing clearly; quick-sighted; sharp of sight.
	2.	Fig.: Of acute discernment; keen.

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" Synonyms: sagacious, sapient
	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" Synonyms: clear-eyed, clear-sighted

acute, all-knowing, apperceptive, appercipient, apprehending, apprehensive, argute, astute, aware, cagey, cogent, cognizant, comprehending, conscious, discerning, farseeing, farsighted, foreseeing, foresighted, forethoughted, forethoughtful, heady, incisive, insightful, intelligent, judicious, knowing, knowledgeable, longheaded, longsighted, mindful, omniscient, penetrating, perceptive, percipient, perspicuous, piercing, prehensile, provident, sagacious, savvy, sensible, sharp-sighted, sharp-witted, shrewd, trenchant, understanding, wise