SAGACIOUS

having sound judgment

perceptive, wise

like a sage

/acutely insightful and wise
SYN - perspicacious, sapient
"observant and thoughtful, he was given to asking sagacious questions."

skillful in statecraft or management
ANT - foolish
"an astute and sagacious statesmen."

" She had always admired how sagacious he was, but now she was seeing that most of it was just rhetoric."

"He knew that all he had to do was say stuff that she didn't really understand or was completely ambiguous and she would think of him as sagacious."

"He held this quality of being sagacious as the most important quality he had."

"A more sagacious response would have been to show that he was above any insult or denigrating remark that she could send towards him."