The Collaborative International Dictionary of English v.0.48:

Sugary \Sug"ar*y\, a.
   1. Resembling or containing sugar; tasting of sugar; sweet.
      --Spenser.
      [1913 Webster]

   2. Fond of sugar or sweet things; as, a sugary palate.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sugary
    adj 1: containing sugar; "he eats too much sugary food" [ant:
           nonsweet, sugarless]

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "sugary":
   ambrosial, bittersweet, candied, honeyed, honeysweet, melliferous,
   mellifluent, mellifluous, nectareous, nectarous, sacchariferous,
   sour-sweet, sugarcoated, sugared, sugarsweet, sweet,
   sweet and pungent, sweet and sour, sweet as sugar, sweetened,
   sweetish, syrupy