WordWeb Online

1. Wisdom that is recondite and abstruse and profound
   - reconditeness, abstruseness, abstrusity, profoundness
    
2. Intellectual depth; penetrating knowledge; keen insight; etc
   - profoundness
    
3. The intellectual ability to penetrate deeply into ideas
   - astuteness, profoundness, depth, deepness
    
4. The quality of being physically deep
   "the profundity of the mine was almost a mile"
   - deepness, profoundness

Derived forms: profundities

See also: profound

Type of: deepness, depth, sapience, wisdom

Antonym: superficiality