Source : Webster's Revised Unabridged Dictionary (1913)

Niggardness \Nig"gard*ness\, n.
   Niggardliness. --Sir P. Sidney.

Source : WordNet®

niggardness
     n : extreme stinginess [syn: {meanness}, {minginess}, {niggardliness},
          {parsimony}, {parsimoniousness}, {tightness}, {tightfistedness},
          {closeness}]