also impassible adjective Date: 1562 incapable of being passed, traveled, crossed, or surmounted, impassability noun ~ness noun impassably adverb
IMPASSABLE
Meaning of IMPASSABLE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012