If you search for a definition of wisdom, you will find little agreement. It is a hard word to define. The Oxford English Dictionary defines it as “the quality of having experience, knowledge, and good judgment; the quality of being wise.” Not very helpful.
I have searched for a better definition but found none that I liked. So I have come up with my own.
Wisdom is the right use of knowledge for attaining insight into the true nature of reality so that one can live the good life.
“The right use of knowledge” is from the Zoroastrian religion. “Insight into the true nature of reality” is from Buddhism. And living “the good life” is from the Greek philosophical tradition.