Impassable
Impassable adjective - Impossible to get through or into.
Obstructed and impassable are semantically related. in blocked topic. In some cases you can use "Obstructed" instead an adjective "Impassable", when it comes to topics like closed.
Nearby Words: impasse, impassible
Obstructed
Obstructed adjective - Shut off to passage or view or hindered from action.
Impassable and obstructed are semantically related. You can use "Impassable" instead an adjective "Obstructed".
Mutual synonyms
Cite this Source
Obstructed and Impassable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/impassable/obstructed
Impassable & Obstructed. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/impassable/obstructed>.
Obstructed or Impassable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/impassable/obstructed.
Google Ngram Viewer shows how "impassable" and "obstructed" have occurred on timeline