The Collaborative International Dictionary of English v.0.48:

Immorality \Im`mo*ral"i*ty\, n.; pl. Immoralities. [Cf. F.
   immoralit['e].]
   1. The state or quality of being immoral; vice.
      [1913 Webster]

            The root of all immorality.           --Sir W.
                                                  Temple.
      [1913 Webster]

   2. An immoral act or practice.
      [1913 Webster]

            Luxury and sloth and then a great drove of heresies
            and immoralities broke loose among them. --Milton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

immorality
    n 1: the quality of not being in accord with standards of right
         or good conduct; "the immorality of basing the defense of
         the West on the threat of mutual assured destruction" [ant:
         morality]
    2: morally objectionable behavior [syn: evil, immorality,
       wickedness, iniquity]