Source : Webster's Revised Unabridged Dictionary (1913)

Syncretic \Syn*cret"ic\, a.
   Uniting and blending together different systems, as of
   philosophy, morals, or religion. --Smart.

Source : WordNet®

syncretic
     adj 1: relating to a historical tendency for a language to reduce
            its use of inflections; "modern English is a syncretic
            language" [syn: {syncretical}, {syncretistic}, {syncretistical}]
     2: of or characterized by syncretism [syn: {syncretical}, {syncretistic},
         {syncretistical}]