noun (n)

• avoiding emotional involvement(noun.feeling)

  Synonym:
  withdrawal
  

  source: wordnet30
• the act of releasing from an attachment or connection(noun.act)

  Synonym:
  disengagement
  

  source: wordnet30
• the state of being isolated or detached(noun.state)

  Synonym:
  insularism, insularity, insulation
  

  source: wordnet30
• a small unit of troops of special composition(noun.group)

  source: wordnet30
• coming apart(noun.event)

  Synonym:
  breakup, separation
  

  source: wordnet30
• The act of detaching or separating, or the state of being detached.(noun)

  source: webster1913