Source : Webster's Revised Unabridged Dictionary (1913)

Avoidable \A*void"a*ble\, a.
   1. Capable of being vacated; liable to be annulled or made
      invalid; voidable.

            The charters were not avoidable for the king's
            nonage.                               --Hale.

   2. Capable of being avoided, shunned, or escaped.

Source : WordNet®

avoidable
     adj : capable of being avoided or warded off [syn: {evitable}, {avertible},
            {avertable}] [ant: {inevitable}]