noun (n)

• unoriginality as a result of being dull and hackneyed(noun.cognition)

  Synonym:
  triteness
  

  source: wordnet30
• having lost purity and freshness as a consequence of aging(noun.attribute)

  Antonym:
  freshness
  

  source: wordnet30
• The quality or state of being stale.(noun)

  source: webster1913