The Collaborative International Dictionary of English v.0.48:

Meanness \Mean"ness\, n.
   1. The condition, or quality, of being mean; want of
      excellence; poorness; lowness; baseness; sordidness;
      stinginess.
      [1913 Webster]

            This figure is of a later date, by the meanness of
            the workmanship.                      --Addison.
      [1913 Webster]

   2. A mean act; as, to be guilty of meanness. --Goldsmith.
      [1913 Webster] meanspirited

WordNet (r) 3.0 (2006):

meanness
    n 1: the quality of being deliberately mean [syn: beastliness,
         meanness]
    2: extreme stinginess [syn: meanness, minginess,
       niggardliness, niggardness, parsimony,
       parsimoniousness, tightness, tightfistedness,
       closeness]