1. heartiness active strength of body or mind
  2. heartlessness an absence of concern for the welfare of others
  3. heartless lacking in feeling, pity, or kindness
  4. heart line a crease on the palm
  5. heartsickness feeling downcast and disheartened and hopeless
  6. hardiness the property of being physically strong and healthy
  7. courtliness elegance suggestive of a royal court
  8. hardness the quality of being difficult to do
  9. healthfulness the quality of promoting good health
  10. heartland the central region of a country or continent
  11. hurriedness overly eager speed (and possible carelessness)
  12. horridness a quality of extreme unpleasantness
  13. hard line a firm and uncompromising stance or position
  14. headlinese using the abbreviated style of headline writers
  15. worthwhileness value sufficient to repay time or effort spent
  16. cowardliness the trait of lacking courage
  17. brittleness the trait of being firm but easily broken
  18. partialness the state of being only a part; not total; incomplete
  19. verticalness position at right angles to the horizon
  20. gradualness the quality of being gradual or of coming about by gradual stages