anonymity

from WordNet (r) 3.0 (2006)

anonymity
    n 1: the state of being anonymous [syn: {anonymity},
         {namelessness}]

from The Collaborative International Dictionary of English v.0.48

Anonymity \An`o*nym"i*ty\, n.
   The quality or state of being anonymous; anonymousness; also,
   that which anonymous. [R.]
   [1913 Webster]

         He rigorously insisted upon the rights of anonymity.
                                                  --Carlyle.
   [1913 Webster]