INSATIABLE

[in.sa.tia.ble] adj [ME insaciable, fr. MF, fr. L insatiabilis, fr. in- + satiare to satisfy--more at satiate] (15c): incapable of being satisfied: quenchless "had an ~ desire for wealth" -- in.sa.tia.bil.i.ty n -- in.sa.tia.ble.ness n -- in.sa.tia.bly adv