Lewis Short
(adjective) : in-sēdābĭlis, e, 2. in-sedo
* That cannot be stayed or stilled, incessant: insedabilis, ἀκατάπαυστος, Gloss. Philox.— * Adv.: insēdābĭlĭter, unquenchably, incessantly: sitis arida,Lucr. 6, 1175.
Charlton T. Lewis, Charles Short, A Latin Dictionary