Im-păss'a-ble, a.
a. [Prefix im and passable.] Incapable of being passed; not admitting a passage; as, an impassable road, mountain, or gulf. Syn. — Impervious; impenetrable; pathless.
a. [Prefix im and passable.] Incapable of being passed; not admitting a passage; as, an impassable road, mountain, or gulf. Syn. — Impervious; impenetrable; pathless.