noun (n)

• the quality of being sharp and clear(noun.attribute)

  Synonym:
  sharpness
  Antonym:
  blurriness, fogginess, fuzziness, indistinctness, softness
  

  source: wordnet30
• the state of being several and distinct(noun.state)

  Synonym:
  discreteness, separateness, severalty
  

  source: wordnet30
• the quality of being not alike; being distinct or different from that otherwise experienced or known(noun.attribute)

  Synonym:
  otherness, separateness
  

  source: wordnet30
• The quality or state of being distinct; a separation or difference that prevents confusion of parts or things.(noun)

  source: webster1913