#cheerfulness__cheer  the quality of being cheerful and dispelling gloom; "flowers added a note of cheerfulness to the drab room"
  exclusion:  #uncheerfulness
  supertype:  #attribute  an abstraction belonging to or characteristic of an entity
  subtype:  #good-temperedness  a cheerful willingness to be obliging
  part of:  #disposition.nature__temperament  your usual mood; "he has a happy disposition"

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