Source : Webster's Revised Unabridged Dictionary (1913)

Vile \Vile\, a. [Comp. {Viler}; superl. {Vilest}.] [OE. vil, F.
   vil, from L. vilis cheap, worthless, vile, base.]
   1. Low; base; worthless; mean; despicable.

            A poor man in vile raiment.           --James ii. 2.

            The craft either of fishing, which was Peter's, or
            of making tents, which was Paul's, were [was] more
            vile than the science of physic.      --Ridley.

            The inhabitants account gold but as a vile thing.
                                                  --Abp. Abbot.

   2. Morally base or impure; depraved by sin; hateful; in the
      sight of God and men; sinful; wicked; bad. ``Such vile
      base practices.'' --Shak.

            Behold, I am vile; what shall I answer thee ? --Job
                                                  xl. 4.

   Syn: See {Base}. -- {Vile"ly}, adv. -- {Vile"ness}, n.

Source : WordNet®

vilely
     adv : in a vile manner; "his vilely spelt and illiterate letters"