[1] : The Collaborative International Dictionary of English v.0.48

yucky \yuck"y\, a.
   repugnant or distasteful. slang

   syn: disgusting, disgustful, distasteful, loathly, loathsome,
        repellent, repellant, repugnant, revolting.
        pjc + wordnet 1.5

[2] : WordNet (r) 2.0

yucky
     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: disgusting,
            disgustful, distasteful, foul, loathly, loathsome,
            repellent, repellant, repelling, revolting, skanky,
            wicked
see also:
disgusting disgustful distasteful foul loathly loathsome 
repellent repellant repelling revolting skanky 
wicked 

[3] : Moby Thesaurus II by Grady Ward, 1.0

38 moby thesaurus words for "yucky":
   awful, bad, barfy, beastly, brackish, cloying, disgusting, fetid,
   foul, fulsome, high, icky, maggoty, mawkish, mucky, nasty,
   nauseant, nauseating, nauseous, noisome, noxious, offensive,
   overripe, poisonous, rancid, rank, rebarbative, repellent,
   repugnant, revolting, rotten, sickening, spoiled, stinking,
   unappetizing, vile, vomity, weevily

Yucky >> Y Words
Yucky, definition of term: Yucky
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