#unchangeability__changelessness__unchangeableness__unchangingness  the quality of being unchangeable; having a marked tendency to remain unchanged
  exclusion:  #changeableness
  supertype:  #quality  an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare
  subtype:  #absoluteness  the quality of being absolute; "the absoluteness of the Pope's decree could not be challenged"
  subtype:  #constancy.unchangeability__stability  the quality of being free from change or variation
  subtype:  #irreversibility  the quality of being irreversible (once done it cannot be changed)
  subtype:  #invariableness__invariability__invariance  the quality of being resistant to variation
     subtype:  #unvariedness  characterized by an absence of variation
        subtype:  #monotony__sameness  the quality of wearisome constancy and lack of variety; "he had never grown accustomed to the monotony of his work"; "he hated the sameness of the food the college served"
  subtype:  #fixedness__fixednes  the quality of being fixed and unchangeable; "the fixedness of his gaze upset her"
  subtype:  #unexchangeability  the quality of being incapable of exchange or interchange
     subtype:  #incommutability  the quality of being not interchangeable
     subtype:  #irreplaceableness__irreplaceablenes  the quality of being irreplaceable
  subtype:  #immutability__immutableness__immutablenes  the quality of being incapable of mutation
     subtype:  #unalterability  the quality of not being alterable
        subtype:  #incurability  incapability of being altered in disposition or habits: "the incurability of his optimism"
     subtype:  #agelessness__agelessnes  the quality of being timeless and eternal

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