noun (n)

• the quality of being honest and straightforward in attitude and speech(noun.attribute)

  Synonym:
  candidness, candor, directness, forthrightness, frankness
  

  source: wordnet30
• ability to make judgments free from discrimination or dishonesty(noun.cognition)

  Synonym:
  candor, fair-mindedness, fairness
  Antonym:
  unfairness
  

  source: wordnet30