Source : Webster's Revised Unabridged Dictionary (1913)

Damnable \Dam"na*ble\, a. [L. damnabilis, fr. damnare: cf. F.
   damnable. See {Damn}.]
   1. Liable to damnation; deserving, or for which one deserves,
      to be damned; of a damning nature.

            A creature unprepared unmeet for death, And to
            transport him in the mind he is, Were damnable.
                                                  --Shak.

   2. Odious; pernicious; detestable.

            Begin, murderer; . . . leave thy damnable faces.
                                                  --Shak.

Source : WordNet®

damnable
     adj : deserving a curse; "her damnable pride" [syn: {execrable}]