noun (n)

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

  Synonym:
  candidness, candor, candour, directness, forthrightness
  

  source: wordnet30
• the trait of being blunt and outspoken(noun.attribute)

  Synonym:
  outspokenness
  

  source: wordnet30
• The quality of being frank; candor; openess; ingenuousness; fairness; liberality.(noun)

  source: webster1913