1. 
2. 
[syn: disgustingly, distastefully, revoltingly, sickeningly]
The Collaborative International Dictionary of English v.0.48:
Distasteful \Dis*taste"ful\, a.
   1. Unpleasant or disgusting to the taste; nauseous;
      loathsome.
      [1913 Webster]
   2. Offensive; displeasing to the feelings; disagreeable; as,
      a distasteful truth.
      [1913 Webster]
            Distasteful answer, and sometimes unfriendly
            actions.                              --Milton.
      [1913 Webster]
   3. Manifesting distaste or dislike; repulsive. "Distasteful
      looks." --Shak.
   Syn: Nauseous; unsavory; unpalatable; offensive; displeasing;
        dissatisfactory; disgusting. - Dis*taste"ful*ly, adv.
        -- Dis*taste"ful*ness, n.
        [1913 Webster]
WordNet (r) 3.0 (2006):
distastefully
    adv 1: in an offensively distasteful manner; "a distastefully
           explicit report on the Royal couple's marital life"
    2: in a disgusting manner or to a disgusting degree; "the beggar
       was disgustingly filthy" [syn: disgustingly,
       distastefully, revoltingly, sickeningly]