noun (n)

• remaining in place(noun.state)

  Synonym:
  immobility, stationariness
  

  source: wordnet30
• the quality of being fixed in place as by some firm attachment(noun.attribute)

  Synonym:
  fastness, fixity, fixture, secureness
  Antonym:
  looseness
  

  source: wordnet30
• the quality of being fixed and unchangeable(noun.attribute)

  Example:
  The fixedness of his gaze upset her.
  

  Synonym:
  unalterability
  

  source: wordnet30
• The state or quality of being fixed; stability; steadfastness.(noun)

  source: webster1913