The Collaborative International Dictionary of English v.0.48:

Ignominy \Ig"no*min*y\, n.; pl. Ignominies. [L. ignominia
   ignominy (i.e., a deprivation of one's good name); in- not +
   nomen name: cf. F. ignominie. See In- not, and Name.]
   1. Public disgrace or dishonor; reproach; infamy.
      [1913 Webster]

            Their generals have been received with honor after
            their defeat; yours with ignominy after conquest.
                                                  --Addison.
      [1913 Webster]

            Vice begins in mistake, and ends in ignominy.
                                                  --Rambler.
      [1913 Webster]

            Ignominy is the infliction of such evil as is made
            dishonorable, or the deprivation of such good as is
            made honorable by the Commonwealth.   --Hobbes.
      [1913 Webster]

   2. An act deserving disgrace; an infamous act.

   Syn: Opprobrium; reproach; dishonor.
        [1913 Webster]

WordNet (r) 3.0 (2006):

ignominy
    n 1: a state of dishonor; "one mistake brought shame to all his
         family"; "suffered the ignominy of being sent to prison"
         [syn: shame, disgrace, ignominy]