Source : Webster's Revised Unabridged Dictionary (1913)

Obloquy \Ob"lo*quy\ ([o^]b"l[-o]*kw[y^]), n. [L. obloquium, fr.
   obloqui. See {Oblocutor}.]
   1. Censorious speech; defamatory language; language that
      casts contempt on men or their actions; blame;
      reprehension.

            Shall names that made your city the glory of the
            earth be mentioned with obloquy and detraction?
                                                  --Addison.

   2. Cause of reproach; disgrace. [Obs.] --Shak.

   Syn: Reproach; odium; censure; contumely; gainsaying;
        reviling; calumny; slander; detraction.

Source : WordNet®

obloquy
     n 1: state of disgrace resulting from public abuse [syn: {opprobrium}]
     2: a malicious attack [syn: {defamation}, {calumny}, {traducement},
         {hatchet job}]