Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

metaphorically
     adv : in a metaphorical manner; "she expressed herself
           metaphorically"