INSATIABLE Meaning of INSATIABLE in English adj. 1 unable to be satisfied. 2 (usu. foll. by of) extremely greedy. insatiability n. insatiably adv.[ ME f. OF insaciable or L insatiabilis (as IN-(1), SATIATE) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012