Source : Webster's Revised Unabridged Dictionary (1913)

Demagogic \Dem`a*gog"ic\, Demagogical \Dem`a*gog"ic*al\, a. [Gr.
   dhmagwkiko`s: cf. F. d['e]magogique.]
   Relating to, or like, a demagogue; factious.

Source : WordNet®

demagogic
     adj : characteristic of or resembling a demagogue; "demagogic
           speeches" [syn: {demagogical}]