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