im·pass·able /(ˌ)ɪmˈpæsəbəl/
(a.)不能通行的,無路可通的
Im·pass·a·ble a. Incapable of being passed; not admitting a passage; as, an impassable road, mountain, or gulf. --Milton. -- Im*pass*a*ble*ness, n. -- Im*pass*a*bly, adv.
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impassable
adj : impossible to pass [syn: unpassable] [ant: passable]