I / in-sŭpĕrābĭlis
adjective

in-sŭpĕrābĭlis

neut. in-sŭpĕrābĭle
that cannot be passed over
that cannot be passed over.
insurmountable
Lit., insurmountable: transitus Alpium, Liv. 21, 23: via, id. ib. 36. —
by extension
Unconquerable; incurable
Unconquerable: genus bello, Verg. A. 4, 40; cf.: caput bello, Ov. M. 12, 613.— Of a disease, incurable: valetudo, Plin. Ep. 2, 2.—
Unavoidable; inevitable; unconquerably
Unavoidable, inevitable: fatum, Ov. M. 15, 807: necessitas fati, Gell. 13, 1.—Adv.: insŭpĕrābĭ-lĭter, unconquerably, Aug. Civ. Dei, 5, 8.