noun (n)

• the quality of being fixed in place as by some firm attachment

  kualitas diperbaiki oleh beberapa perusahaan di tempat sebagai lampiran

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

  source: wordnet30
• the quality of being incapable of mutation

  kualitas yang mampu mutasi

  Example:
  Darwin challenged the fixity of species.
  

  Synonym:
  immutability, immutableness
  Antonym:
  mutability, mutableness
  

  source: wordnet30
• Fixedness; as, fixity of tenure; also, that which is fixed.

  fixedness; sebagai, aku ketahanan/ aku dari jawatan; juga, yang ditetapkan.

  source: webster1913