Adjective: perspicacious ,pur-spi'key-shus
- Acutely insightful and wise
"much too perspicacious to be taken in by such a spurious argument";
- sagacious, sapient
- Mentally acute or penetratingly discerning
"much too perspicacious to be taken in by so spurious an argument";
- clear-eyed, clear-sighted
See also: discerning, wise