Found 2 items, similar to unpassable.
English → English (WordNet) Definition: unpassable unpassable adj : impossible to pass [syn: impassable] [ant: passable]
English → English (gcide) Definition: Unpassable Unpassable \Un*pass"a*ble\, a. Impassable. --E. A. Freeman. -- Un*pass"a*ble*ness, n. --Evelyn. [1913 Webster]