'Insatiable' definitions:

Definition of 'insatiable'

(from WordNet)
adjective
Impossible to satisfy; "an insatiate appetite"; "an insatiable demand for old buildings to restore"; "his passion for work was unsatiable" [syn: insatiate, insatiable, unsatiable] [ant: satiate, satiated]

Definition of 'Insatiable'

From: GCIDE
  • Insatiable \In*sa"tia*ble\, a. [F. insatiable, L. ionsatiabilis. See In- not, and Satiable.] Not satiable; incapable of being satisfied or appeased; very greedy; as, an insatiable appetite, thirst, or desire. [1913 Webster]
  • "Insatiable of glory." --Milton. [1913 Webster]