1. (

• perspicacious ,
• sagacious ,
• sapient

) 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. (

• sagacious

) skillful in statecraft or management; "an astute and sagacious statesman" ;