Source : Webster's Revised Unabridged Dictionary (1913)

Odium \O"di*um\, n. [L., fr. odi I hate. Gr. {Annoy},
   {Noisome}.]
   1. Hatred; dislike; as, his conduct brought him into odium,
      or, brought odium upon him.

   2. The quality that provokes hatred; offensiveness.

            She threw the odium of the fact on me. --Dryden.

   {Odium theologicum}[L.], the enmity peculiar to contending
      theologians.

   Syn: Hatred; abhorrence; detestation; antipathy.

   Usage: {Odium}, {Hatred}. We exercise hatred; we endure
          odium. The former has an active sense, the latter a
          passive one. We speak of having a hatred for a man,
          but not of having an odium toward him. A tyrant incurs
          odium. The odium of an offense may sometimes fall
          unjustly upon one who is innocent.

                I wish I had a cause to seek him there, To
                oppose his hatred fully.          --Shak.

                You have . . . dexterously thrown some of the
                odium of your polity upon that middle class
                which you despise.                --Beaconsfield.

Source : WordNet®

odium
     n 1: state of disgrace resulting from detestable behavior
     2: hate coupled with disgust [syn: {abhorrence}, {abomination},
         {detestation}, {execration}, {loathing}]