The Collaborative International Dictionary of English v.0.48:

Metaphoric \Met`a*phor"ic\, Metaphorical \Met`a*phor"ic*al\, a.
   [Gr. ?: cf. F. m['e]taphorique.]
   Of or pertaining to metaphor; comprising a metaphor; not
   literal; figurative; tropical; as, a metaphorical expression;
   a metaphorical sense. -- Met`a*phor"ic*al*ly, adv. --
   Met`a*phor"ic*al*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

metaphorical
    adj 1: expressing one thing in terms normally denoting another;
           "a metaphorical expression"; "metaphoric language" [syn:
           metaphorical, metaphoric]

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "metaphorical":
   allegoric, allegorical, allusive, anagogic, associational,
   connotational, connotative, definable, demonstrative, denominative,
   denotational, denotative, designative, diagnostic, emblematic,
   evidential, exhibitive, expressive, extended, extensional, figural,
   figurative, figured, flowery, full of meaning, full of point,
   full of substance, identifying, ideographic, idiosyncratic,
   implicative, indicating, indicative, indicatory, individual,
   intelligible, intensional, interpretable, mannered, meaning,
   meaningful, meaty, naming, ornamented, pathognomonic, peculiar,
   pithy, pointed, pregnant, readable, referential, representative,
   semantic, semiotic, sententious, signalizing, significant,
   significative, signifying, substantial, suggestive, symbolic,
   symbolistic, symbological, symptomatic, symptomatologic,
   transferred, trolatitious, tropological, typical