noun (n)

• the intellectual productivity of a creative imagination(noun.cognition)

  Synonym:
  fruitfulness
  

  source: wordnet30
• the state of being fertile; capable of producing offspring(noun.state)

  Synonym:
  fertility
  Antonym:
  infertility, sterility
  

  source: wordnet30
• the quality of something that causes or assists healthy growth(noun.attribute)

  Antonym:
  aridity, barrenness, fruitlessness
  

  source: wordnet30
• The quality or power of producing fruit; fruitfulness; especially (Biol.), the quality in female organisms of reproducing rapidly and in great numbers.(noun)

  source: webster1913