profoundness

noun

1. extremeness of degree"the profoundness of his ignorance"
2. wisdom that is recondite and abstruse and profound"the anthropologist was impressed by the reconditeness of the native proverbs"
3. the intellectual ability to penetrate deeply into ideas
4. the quality of being physically deep"the profundity of the mine was almost a mile"
5. intellectual depth, penetrating knowledge, keen insight, etc."the depth of my feeling"