noun (n)

• wisdom that is recondite and abstruse and profound(noun.cognition)

  Example:
  The anthropologist was impressed by the reconditeness of the native proverbs.
  

  Synonym:
  abstruseness, abstrusity, profoundness, profundity
  

  source: wordnet30
• the quality of being unclear or abstruse and hard to understand(noun.attribute)

  Synonym:
  abstruseness, obscureness, obscurity
  Antonym:
  clarity, clearness, limpidity, lucidity, lucidness, pellucidity
  

  source: wordnet30