Source : Webster's Revised Unabridged Dictionary (1913)

Incorruptness \In`cor*rupt"ness\, n.
   1. Freedom or exemption from decay or corruption.

   2. Probity; integrity; honesty. --Woodward.

Source : WordNet®

incorruptness
     n : characterized by integrity or probity [syn: {incorruption}]
         [ant: {corruptness}]