Insatiable
Pronunciation : In*sa"tia*ble
Part of Speech : a.
Etymology : [F. insatiable, L. ionsatiabilis. See In- not, and Satiable.]
Definition : Defn: Not satiable; incapable of being satisfied or appeased; very greedy; as, an insatiable appetite, thirst, or desire. "Insatiable of glory." Milton.
Source : Webster's Unabridged Dictionary, 1913