1. heartlessness an absence of concern for the welfare of others
  2. colourlessness the visual property of being without chromatic color
  3. hairlessness the condition of being void of hair
  4. helplessness the state of needing help from something
  5. hilariously in a hilarious manner
  6. superciliousness the trait of displaying arrogance by patronizing those considered inferior
  7. pricelessness the positive quality of being precious and beyond value
  8. colorlessness the visual property of being without chromatic color
  9. graciousness excellence of manners or social conduct
  10. maliciousness feeling a need to see others suffer
  11. deliciousness extreme appetizingness
  12. fallaciousness result of a fallacy or error in reasoning
  13. voraciousness excessive desire to eat
  14. mercilessness feelings of extreme heartlessness
  15. flavourlessness the property of having no flavor
  16. luxuriousness wealth as evidenced by sumptuous living
  17. gracelessness an unpleasant lack of grace in carriage or form or movement or expression
  18. hilarious marked by boisterous merriment or convulsive laughter
  19. valorousness the qualities of a hero or heroine
  20. loquaciousness the quality of being wordy and talkative

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.