perspicacious

英[,pɜːspɪ'keɪʃəs] 美[,pɝspɪ'keʃəs]

1. 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"

2. 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"