Impassable
Impassable adjective - Impossible to get through or into.
Secure and impassable are semantically related. In some cases you can use "Secure" instead an adjective "Impassable".
Nearby Words: impasse, impassible
Secure
Secure adjective - Having or showing great faith in oneself or one's abilities.
Impassable and secure are semantically related. Sometimes you can use "Impassable" instead an adjective "Secure".
Mutual synonyms
Cite this Source
Secure and Impassable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impassable/secure
Impassable & Secure. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impassable/secure>.
Secure or Impassable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impassable/secure.
Google Ngram Viewer shows how "impassable" and "secure" have occurred on timeline