profoundness

noun

1. 1

   intellectual depth; penetrating knowledge; keen insight; etc

   the depth of my feeling

   the profoundness of the silence

2. 2

   the quality of being physically deep

   the profundity of the mine was almost a mile

3. 3

   the intellectual ability to penetrate deeply into ideas

4. 4

   wisdom that is recondite and abstruse and profound

   the anthropologist was impressed by the reconditeness of the native proverbs

5. 5

   extremeness of degree

   the profoundness of his ignorance