wisdom that is recondite and abstruse and profound
"the anthropologist was impressed by the reconditeness of the native proverbs"
intellectual depth; penetrating knowledge; keen insight; etc
"the depth of my feeling"
"the profoundness of the silence"
the intellectual ability to penetrate deeply into ideas
the quality of being physically deep
"the profundity of the mine was almost a mile"
The state of being profound or abstruse.