The Collaborative International Dictionary of English v.0.48:

Incorruption \In`cor*rup"tion\, n. [L. incorruptio: cf. F.
   incorruption. See In- not, and Corruption.]
   The condition or quality of being incorrupt or incorruptible;
   absence of, or exemption from, corruption.
   [1913 Webster]

         It is sown in corruption; it is raised in incorruption.
                                                  --1 Cor. xv.
                                                  42.
   [1913 Webster]

         The same preservation, or, rather, incorruption, we
         have observed in the flesh of turkeys, capons, etc.
                                                  --Sir T.
                                                  Browne.
   [1913 Webster]

WordNet (r) 3.0 (2006):

incorruption
    n 1: characterized by integrity or probity [syn:
         incorruptness, incorruption] [ant: corruption,
         corruptness]