Safeness

from WordNet (r) 3.0 (2006)

safeness
    n 1: the quality of being safe [ant: {dangerousness}]

from The Collaborative International Dictionary of English v.0.48

Safeness \Safe"ness\, n.
   The quality or state of being safe; freedom from hazard,
   danger, harm, or loss; safety; security; as the safeness of
   an experiment, of a journey, or of a possession.
   [1913 Webster]