Source : Webster's Revised Unabridged Dictionary (1913)

Phantasmagoric \Phan*tas`ma*gor"ic\, a.
   Of or pertaining to phantasmagoria; phantasmagorial.
   --Hawthorne.

Source : WordNet®

phantasmagoric
     adj : characterized by fantastic imagery and incongruous
           juxtapositions; "a great concourse of phantasmagoric
           shadows"--J.C.Powys; "the incongruous imagery in
           surreal art and literature" [syn: {phantasmagorical}, {surreal},
            {surrealistic}]