noun (n)

• quality of being moderate and avoiding extremes(noun.attribute)

  Synonym:
  moderateness
  Antonym:
  immoderateness, immoderation
  

  source: wordnet30
• a change for the better(noun.event)

  Synonym:
  easing, relief
  

  source: wordnet30
• the trait of avoiding excesses(noun.attribute)

  Synonym:
  temperance
  Antonym:
  intemperance
  

  source: wordnet30
• the action of lessening in severity or intensity(noun.act)

  Example:
  The object being control or moderation of economic depressions.
  

  Synonym:
  mitigation
  

  source: wordnet30
• The act of moderating, or of imposing due restraint.(noun)

  source: webster1913