noun (n)

• an abrupt discourteous manner(noun.attribute)

  Synonym:
  brusqueness, curtness, gruffness, shortness
  

  source: wordnet30
• the property possessed by a slope that is very steep(noun.attribute)

  Synonym:
  precipitousness, steepness
  Antonym:
  gentleness, gradualness
  

  source: wordnet30
• the quality of happening with headlong haste or without warning(noun.attribute)

  Synonym:
  precipitance, precipitancy, precipitateness, precipitousness, suddenness
  

  source: wordnet30
• The state of being abrupt or broken; craggedness; ruggedness; steepness.(noun)

  source: webster1913