impassable

About 0.77 uses per million words.

Meaning

1. adjective Incapable of being passed over, crossed, or negotiated.
2. adjective Incapable of being overcome or surmounted.
3. adjective Not usable as legal tender.

Similar words

unnavigable untraversable unclimbable unsurmountable unpassable insuperable insurmountable impenetrable impracticable unfeasible

Often followed by

for barrier gulf by to in and barriers roads

Word family

impassabilities impassability impassableness impassablenesses impassably impassibilities impassibility impassible impassibly