#invariableness__invariability__invariance  the quality of being resistant to variation
  exclusion:  #variableness
  supertype:  #unchangeability__changelessness__unchangeableness__unchangingness  the quality of being unchangeable; having a marked tendency to remain unchanged
  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"

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