impervius
impervius, not to be traversed, impassable
Could not find impervia in Logeion dictionaries.
impervia feminine nominative singular, neuter nominative plural, feminine vocative singular, neuter accusative plural, neuter vocative plural, feminine ablative singular of impervius
impervĭus (inp-), a, um, adj. [2. inpervius],
- that cannot be passed through, impassable, impervious (poet. and in post-Aug. prose; cf.: inaccessus, invius): amnis, Ov. M. 9, 106: iter, Quint. 12, 11, 11; cf. itinera (with interrupta), Tac. A. 3, 31: tellus, inaccessible, Val. Fl. 2, 643.— Transf.: lapis ignibus, Tac. A. 15, 43.
im-pervius, a, um (in u. pervius), undurchschreitbar, unpassierbar, amnis, Ov.: iter, Tac.: lapis ignibus impervius, feuerfester, Tac.
est fons in Ungaria, cujus rivuli ‥ solidissimum in lapidem visuique penitus ~ium condensantur
impervĭus, (15) a, um (in, pervius), impraticable, inaccessible : Ov. M. 9, 106 ; Quint. 12, 11, 11 ; Tac. Ann. 3, 31.
impervius (in-p-)
adj.,
- not to be traversed, impassable: amnis, O.: lapis ignibus, fire-proof, Ta.