wise

adjective, wis·er, wis·est.

1. having the power of discerning and judging properly as to what is true or right; possessing discernment, judgment, or discretion.
2. characterized by or showing such power; judicious or prudent: a wise decision.
3. possessed of or characterized by scholarly knowledge or learning; learned; erudite: wise in the law.
4. having knowledge or information as to facts, circumstances, etc.: We are wiser for their explanations.
5. Slang. informed; in the know: You’re wise, so why not give us the low-down?
6. Archaic. having knowledge of magic or witchcraft.