Impassable a. : Incapable of being passed; not admitting a passage; as, an impassable road, mountain, or gulf.

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Taxonomy
impassable, Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, Custom Search, glossary, english, language, ESL, Search, ble, adjective, abil, ty, ness, l-n.

Defination from the web:
impassable from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Learn more about "impassable" with Google Search >> Custom Search. Learn more about "impassable" and related topics at Britannica.com ...