The Collaborative International Dictionary of English v.0.48:
Incorruptness \In`cor*rupt"ness\, n. 1. Freedom or exemption from decay or corruption. [1913 Webster] 2. Probity; integrity; honesty. --Woodward. [1913 Webster]WordNet (r) 3.0 (2006):
incorruptness n 1: characterized by integrity or probity [syn: incorruptness, incorruption] [ant: corruption, corruptness]