[1] : The Collaborative International Dictionary of English v.0.48

defamatory \defam"atory\, a.
   containing defamation; injurious to reputation; calumnious;
   slanderous; as, defamatory words; defamatory writings.
   1913 webster

[2] : WordNet (r) 2.0

defamatory
     adj : used of statements harmful and often untrue; tending to
           discredit or malign syn: calumniatory, calumnious,
            denigrative, denigrating, denigratory, libellous,
            libelous, slanderous
see also:
calumniatory calumnious denigrative denigrating denigratory libellous 
libelous slanderous 

[3] : Moby Thesaurus II by Grady Ward, 1.0

32 moby thesaurus words for "defamatory":
   abusive, back-biting, backbiting, belittling, bitchy, calumniatory,
   calumnious, catty, censorious, contemptuous, contumelious,
   deprecatory, depreciative, depreciatory, derisive, derisory,
   derogative, derogatory, detracting, detractory, disparaging,
   libelous, maligning, minimizing, pejorative, ridiculing,
   scandalous, scurrile, scurrilous, slanderous, slighting,
   vilifying

Defamatory >> D Words
Defamatory, definition of term: Defamatory
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