Conceivable
Conceivable adjective - Capable of being imagined.
Impregnable and conceivable are semantically related. In some cases you can use "Impregnable" instead an adjective "Conceivable".
Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Conceivable and impregnable are semantically related. Sometimes you can use "Conceivable" instead an adjective "Impregnable".
Mutual synonyms
Cite this Source
Impregnable and Conceivable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/conceivable/impregnable
Conceivable & Impregnable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/conceivable/impregnable>.
Impregnable or Conceivable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/conceivable/impregnable.
Google Ngram Viewer shows how "conceivable" and "impregnable" have occurred on timeline