Antonyms of adj unpassable

1 sense of unpassable

Sense 1
impassable (vs. passable), unpassable -- (incapable of being passed)


Similarity of adj unpassable

1 sense of unpassable

Sense 1
impassable (vs. passable), unpassable -- (incapable of being passed)
       => unsurmountable, unclimbable -- (incapable of being surmounted or climbed)
       => unnavigable -- (incapable of being navigated)
       => untraversable -- (incapable of being traversed)