noun (n)

• the quality or character of being intellectually sophisticated and worldly through cultivation or experience or disillusionment(noun.attribute)

  Synonym:
  mundanity, sophistication, worldliness
  Antonym:
  naiveness, naivete, naivety
  

  source: wordnet30
• the quality of being commonplace and ordinary(noun.attribute)

  Synonym:
  mundanity, ordinariness
  Antonym:
  extraordinariness
  

  source: wordnet30