disservice

from WordNet (r) 3.0 (2006)

disservice
    n 1: an act intended to help that turns out badly; "he did them
         a disservice" [syn: {disservice}, {ill service}, {ill
         turn}] [ant: {service}]

from The Collaborative International Dictionary of English v.0.48

Disservice \Dis*serv"ice\, n. [Pref. dis- + service: cf. F.
   desservice.]
   Injury; mischief.
   [1913 Webster]

         We shall rather perform good offices unto truth than
         any disservice unto their relators.      --Sir T.
                                                  Browne.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

19 Moby Thesaurus words for "disservice":
      atrocity, bad deed, bad turn, damage, disfavor, great wrong,
      grievance, gross injustice, harm, ill service, ill turn,
      imposition, injury, injustice, miscarriage of justice, outrage,
      raw deal, unkindness, wrong

[email protected]