1. the quality or state of being profound; depth
2. Usually profundities, profound or deep matters
3. a profoundly deep place; abyss
Courtesy of dictionary.com :]
Usage: The profundity of Dante and Machiavelli intrigues me.
I don't know why but this word caught my eye. I think I'm going to attempt using it in conversation tomorrow. Hmm...just a thought.