li·bel·ous /ˈlaɪb(ə)ləs/
  (a.)損害名譽的;誹謗的
  Li·bel·ous a. Containing or involving a libel; defamatory; containing that which exposes some person to public hatred, contempt, or ridicule; as, a libelous pamphlet. [Written also libellous.] -- Li*bel*ous*ly, adv.
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  libelous
       adj : (used of statements) harmful and often untrue; tending to
             discredit or malign [syn: calumniatory, calumnious,
              defamatory, denigrative, denigrating, denigratory,
              libellous, slanderous]