insatiable insatiable /ˌɪnˈseɪʃəbəl/

adjective

1. Impossible to satisfy  ( insatiable , insatiate , unsatiable )
   impossible to satisfy
    An insatiate appetite
   an insatiate appetite
    An insatiable demand for old buildings to restore
   an insatiable demand for old buildings to restore
    His passion for work was unsatiable
   his passion for work was unsatiable