noun (n)

• the roughness of a substance that causes abrasions(noun.attribute)

  Synonym:
  abrasiveness, scratchiness
  

  source: wordnet30
• the quality of being unpleasant (harsh or rough or grating) to the senses(noun.attribute)

  Synonym:
  roughness
  

  source: wordnet30
• the quality of being cruel and causing tension or annoyance(noun.attribute)

  Synonym:
  cruelness, cruelty
  

  source: wordnet30
• excessive sternness(noun.attribute)

  Example:
  The harshness of his punishment was inhuman.
  

  Synonym:
  hardness, inclemency, rigor, rigorousness, rigour, rigourousness, severeness, severity, stiffness
  

  source: wordnet30
• The quality or state of being harsh.(noun)

  source: webster1913