noun (n)

• according with conscience or morality(noun.attribute)

  Antonym:
  wrongness
  

  source: wordnet30
• appropriate conduct; doing the right thing(noun.attribute)

  Synonym:
  appropriateness
  Antonym:
  inappropriateness, wrongness
  

  source: wordnet30
• conformity to fact or truth(noun.attribute)

  Synonym:
  correctness
  Antonym:
  incorrectness, wrongness
  

  source: wordnet30
• conformity with some esthetic standard of correctness or propriety(noun.attribute)

  Synonym:
  justness, nicety
  

  source: wordnet30
• Straightness; as, the rightness of a line.(noun)

  source: webster1913