Impenetrable
Impenetrable adjective - Impossible to get through or into.
Unplumbed and impenetrable are semantically related. In some cases you can use "Unplumbed" instead an adjective "Impenetrable".
Nearby Words: impenetrability, impenetrably
Unplumbed
Unplumbed adjective - Situated at or extending to great depth; too deep to have been sounded or plumbed.
Impenetrable and unplumbed are semantically related. Sometimes you can use "Impenetrable" instead an adjective "Unplumbed".
Mutual synonyms
Related pairs
- deep and impenetrable
- deep and unplumbed
- heavy and impenetrable
- heavy and unplumbed
- profound and impenetrable
- profound and unplumbed
- abstruse and impenetrable
- abstruse and unplumbed
- fathomless and impenetrable
- fathomless and unplumbed
- unfathomable and impenetrable
- unfathomable and unplumbed
- obscure and impenetrable
- obscure and unplumbed
Cite this Source
Unplumbed and Impenetrable. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/impenetrable/unplumbed
Impenetrable & Unplumbed. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/impenetrable/unplumbed>.
Unplumbed or Impenetrable. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/impenetrable/unplumbed.
Google Ngram Viewer shows how "impenetrable" and "unplumbed" have occurred on timeline