Source : Webster's Revised Unabridged Dictionary (1913)

Disgust \Dis*gust"\, v. t. [imp. & p. p. {Disgusted}; p. pr. &
   vb. n. {Disgusting}.] [OF. desgouster, F. d['e]go[^u]ter;
   pref. des- (L. dis-) + gouster to taste, F. go[^u]ter, fr. L.
   gustare, fr. gustus taste. See {Gust} to taste.]
   To provoke disgust or strong distaste in; to cause (any one)
   loathing, as of the stomach; to excite aversion in; to offend
   the moral taste of; -- often with at, with, or by.

         To disgust him with the world and its vanities.
                                                  --Prescott.

         [AE]rius is expressly declared . . . to have been
         disgusted at failing.                    --J. H.
                                                  Newman.

         Alarmed and disgusted by the proceedings of the
         convention.                              --Macaulay.

Disgusting \Dis*gust"ing\, a.
   That causes disgust; sickening; offensive; revolting. --
   {Dis*gust"ing*ly}, adv.

Source : WordNet®

disgusting
     adj : highly offensive; arousing aversion or disgust; "a
           disgusting smell"; "distasteful language"; "a loathsome
           disease"; "the idea of eating meat is repellent to me";
           "revolting food"; "a wicked stench" [syn: {disgustful},
            {distasteful}, {foul}, {loathly}, {loathsome}, {repellent},
            {repellant}, {repelling}, {revolting}, {skanky}, {wicked},
            {yucky}]