(Adjective) 1 Keen in sense perception

2 a. of keen and farsighted penetration and judgment: discerning
  b. caused by or indicating acute discernment
In Context
“The judge made a legally sound, judiciously sane, and socially sagacious decision and I applaud her wisdom and courage in the face of the barrage of negative media condemnation.”
The Washington Post, 2016