The Collaborative International Dictionary of English v.0.48:

Allegoric \Al`le*gor"ic\, Allegorical \Al`le*gor"ic*al\, a. [F.
   all['e]gorique, L. allegorius, fr. Gr. ?. See Allegory.]
   Belonging to, or consisting of, allegory; of the nature of an
   allegory; describing by resemblances; figurative. "An
   allegoric tale." --Falconer. "An allegorical application."
   --Pope.
   [1913 Webster]

         Allegorical being . . . that kind of language which
         says one thing, but means another.       --Max Miller.
   [1913 Webster] Al`le*gor"ic*al*ly, adv. --
   Al`le*gor"ic*al*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

allegorical
    adj 1: used in or characteristic of or containing allegory;
           "allegorical stories"; "an allegorical painting of
           Victory leading an army" [syn: allegorical,
           allegoric]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "allegorical":
   allegoric, anagogic, associational, connotational, connotative,
   definable, denotational, denotative, expressive, extended,
   extensional, fabulous, fictional, figurative, full of meaning,
   full of point, full of substance, indicative, intelligible,
   intensional, interpretable, legendary, meaning, meaningful, meaty,
   metaphorical, mythic, mythological, mythopoeic, mythopoetic,
   parabolic, pithy, pointed, pregnant, readable, referential,
   romantic, romanticized, sententious, significant, significative,
   substantial, suggestive, symbolic, transferred