Source : Webster's Revised Unabridged Dictionary (1913)

Kaleidoscopic \Ka*lei`do*scop"ic\, Kaleidoscopical
\Ka*lei`do*scop"ic*al\, a.
   Of, pertaining to, or formed by, a kaleidoscope; variegated.

Source : WordNet®

kaleidoscopical
     adj : continually shifting or rapidly changing [syn: {kaleidoscopic}]