Source : Webster's Revised Unabridged Dictionary (1913)

Vandal \Van"dal\, n. [L. Vandalus, Vandalius; of Teutonic
   origin, and probably originally signifying, a wanderer. Cf.
   {Wander}.]
   1. (Anc. Hist.) One of a Teutonic race, formerly dwelling on
      the south shore of the Baltic, the most barbarous and
      fierce of the northern nations that plundered Rome in the
      5th century, notorious for destroying the monuments of art
      and literature.

   2. Hence, one who willfully destroys or defaces any work of
      art or literature.

            The Vandals of our isle, Sworn foes to sense and
            law.                                  --Cowper.

Vandal \Van"dal\, Vandalic \Van*dal"ic\, a.
   Of or pertaining to the Vandals; resembling the Vandals in
   barbarism and destructiveness.

Source : WordNet®

vandal
     n 1: someone who willfully destroys or defaces property
     2: a member of the Germanic people who overran Gaul and Spain
        and North Africa and sacked Rome in 455