Source : Webster's Revised Unabridged Dictionary (1913)

Baseness \Base"ness\, n.
   The quality or condition of being base; degradation;
   vileness.

         I once did hold it a baseness to write fair. --Shak.

Source : WordNet®

baseness
     n : unworthiness by virtue of lacking higher values [syn: {contemptibility},
          {despicableness}, {despicability}]