Fasts
Impregnable and fasts are semantically related. in fixed topic. In some cases you can use "Impregnable" instead an adjective "Fasts".
Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Fasts and impregnable are semantically related. Sometimes you can replace term "Fasts" with "Impregnable", this adjectives are similar.
Mutual synonyms
Cite this Source
Impregnable and Fasts. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fasts/impregnable
Fasts & Impregnable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fasts/impregnable>.
Impregnable or Fasts. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fasts/impregnable.
Google Ngram Viewer shows how "fasts" and "impregnable" have occurred on timeline