noun (n)

• the state of being sober and not intoxicated by alcohol(noun.state)

  Synonym:
  soberness
  Antonym:
  drunkenness, inebriation, inebriety, insobriety, intoxication, tipsiness
  

  source: wordnet30
• moderation in or abstinence from alcohol or other drugs(noun.attribute)

  Synonym:
  dryness
  

  source: wordnet30
• a manner that is serious and solemn(noun.attribute)

  Synonym:
  graveness, gravity, soberness, somberness, sombreness
  

  source: wordnet30
• abstaining from excess(noun.act)

  Synonym:
  temperance
  

  source: wordnet30
• Habitual soberness or temperance as to the use of spirituous liquors; as, a man of sobriety.(noun)

  source: webster1913