Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
in-sătŭrābĭlis, e, adj., insatiable: abdomen, Cic. Sest. 51, 110; with gen.: sanguinis humani, Oros. 3, 18 fin.
Adv.: in-sătŭrābĭlĭter, insatiably: annis praeteritis expleri, Cic. N. D. 2, 25, 64.