noun (n)

• the trait of exhibiting no personal embarrassment or concern(noun.attribute)

  Example:
  The blandness of his confession enraged the judge.
  

  source: wordnet30
• lacking any distinctive or interesting taste property(noun.attribute)

  Synonym:
  insipidity, insipidness
  

  source: wordnet30
• the quality of being bland and gracious or ingratiating in manner(noun.attribute)

  Synonym:
  smoothness, suaveness, suavity
  

  source: wordnet30
• The state or quality of being bland.(noun)

  source: webster1913