From 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]
From WordNet (r) 3.0 (2006) :
incorruptness
n 1: characterized by integrity or probity [syn:
incorruptness, incorruption] [ant: corruption,
corruptness]