Origin: Latin suffix -ous
Perspicacious has 3 different meanings across 1 category:
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"
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"
Of acute discernment; having keen insight; mentally perceptive.