noun (n)

• the quickness of action or occurrence(noun.attribute)

  Synonym:
  immediacy, instancy, instantaneousness
  

  source: wordnet30
• lack of an intervening or mediating agency(noun.attribute)

  Synonym:
  immediacy
  Antonym:
  mediacy, mediateness
  

  source: wordnet30
• The quality or relations of being immediate in manner, place, or time; exemption from second or interventing causes.(noun)

  source: webster1913