deepness

Noun

• a low pitch that is loud and voluminous

• the extent downward or backward or inward
  • the depth of the water
    
  • depth of a shelf
    
  • depth of a closet
    

• the quality of being physically deep
  • the profundity of the mine was almost a mile
    

• the intellectual ability to penetrate deeply into ideas

Related words

• Synonyms: 
  depth , profundity , profoundness , astuteness