#longing__yearning  prolonged unfulfilled desire or need
  supertype:  #desire  the feeling that accompanies an unsatisfied state
  subtype:  #hankering__yen  a yearning for something or to do something
  subtype:  #pining  a feeling of deep longing
     subtype:  #lovesickness  a pining for a loved one
  subtype:  #wishfulness__wishfulnes  an unrealistic yearning
  subtype:  #wistfulness__wistfulnes  a sadly pensive longing
  subtype:  #nostalgia  longing for something past
     subtype:  #homesickness  a longing to return home
  subtype:  #discontentment__discontent__discontentedness  a longing for something better than the present situation
     subtype:  #disgruntlement  a feeling of sulky discontent
     subtype:  #dysphoria  abnormal depression and discontent
     subtype:  #dissatisfaction  the feeling of being displeased and discontent; "he was never slow to express his dissatisfaction with the service he received"
        subtype:  #boredom__ennui  the feeling of being bored by something tedious
           subtype:  #blahs__blah  (informal usage) a general feeling of boredom and dissatisfaction
           subtype:  #fatigue  (always used with a modifier) boredom resulting from overexposure; "he was suffering from museum fatigue"; "after watching TV with her husband she had a bad case of football fatigue"; "the American public is experiencing scandal fatigue"; "political fatigue"
        subtype:  #displeasure  the feeling of being displeased or annoyed or dissatisfied with someone or something
        subtype:  #disappointment__letdown  a feeling of dissatisfaction that results when your expectations are not realized; "his hopes were so high he was doomed to disappointment"
           subtype:  #defeat__frustration  the feeling that accompanies an experience of being thwarted in attaining your goals

No statement uses or specializes #longing; click here to add one.