Closely set
Impenetrable and closely set are semantically related. In some cases you can use "Impenetrable" instead an adjective phrase "Closely set".
Impenetrable
Impenetrable adjective - Impossible to get through or into.
Closely set and impenetrable are semantically related. Sometimes you can use "Closely set" instead an adjective "Impenetrable".
Nearby Words: impenetrability, impenetrably
Mutual synonyms
Cite this Source
Impenetrable and Closely set. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/closely_set/impenetrable
Closely set & Impenetrable. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/closely_set/impenetrable>.
Impenetrable or Closely set. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/closely_set/impenetrable.
Google Ngram Viewer shows how "closely set" and "impenetrable" have occurred on timeline