blandness in WordNet English dictionary

1. lacking any distinctive or interesting taste property
   blandness  insipidity  insipidness 
   
2. the quality of being bland and gracious or ingratiating in manner
   suavity  suaveness  blandness  smoothness 
   
3. the trait of exhibiting no personal embarrassment or concern
   "the blandness of his confession enraged the judge"
   blandness