Source : Webster's Revised Unabridged Dictionary (1913)

Shadowy \Shad"ow*y\, a.
   1. Full of shade or shadows; causing shade or shadow.
      ``Shadowy verdure.'' --Fenton.

            This shadowy desert, unfrequented woods. --Shak.

   2. Hence, dark; obscure; gloomy; dim. ``The shadowy past.''
      --Longfellow.

   3. Not brightly luminous; faintly light.

            The moon . . . with more pleasing light, Shadowy
            sets off the face things.             --Milton.

   4. Faintly representative; hence, typical.

            From shadowy types to truth, from flesh to spirit.
                                                  --Milton.

   5. Unsubstantial; unreal; as, shadowy honor.

            Milton has brought into his poems two actors of a
            shadowy and fictitious nature, in the persons of Sin
            and Death.                            --Addison.

Source : WordNet®

shadowy
     adj 1: filled with shade; "the shady side of the street"; "the
            surface of the pond is dark and shadowed"; "we sat on
            rocks in a shadowy cove"; "cool umbrageous woodlands"
            [syn: {shady}, {shadowed}, {umbrageous}]
     2: lacking clarity or distinctness; "a dim figure in the
        distance"; "only a faint recollection"; "shadowy figures
        in the gloom"; "saw a vague outline of a building through
        the fog"; "a few wispy memories of childhood" [syn: {dim},
         {faint}, {vague}, {wispy}]
     3: lacking in substance; "strange fancies of unreal and shadowy
        worlds"- W.A.Butler; "dim shadowy forms"; "a wraithlike
        column of smoke" [syn: {wraithlike}]