Impenetrable
Impenetrable adjective - Impossible to get through or into.
Undefinable and impenetrable are semantically related. In some cases you can use "Undefinable" instead an adjective "Impenetrable".
Nearby Words: impenetrability, impenetrably
Undefinable
Undefinable adjective - Not capable of being precisely or readily described; not easily put into words.
Impenetrable and undefinable are semantically related. Sometimes you can use "Impenetrable" instead an adjective "Undefinable".
Mutual synonyms
Related pairs
- unfathomable and impenetrable
- unfathomable and undefinable
- obscure and impenetrable
- obscure and undefinable
- unclear and impenetrable
- unclear and undefinable
- perplexing and impenetrable
- perplexing and undefinable
- puzzling and impenetrable
- puzzling and undefinable
- inscrutable and impenetrable
- inscrutable and undefinable
- mysterious and impenetrable
- mysterious and undefinable
Cite this Source
Undefinable and Impenetrable. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/impenetrable/undefinable
Impenetrable & Undefinable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/impenetrable/undefinable>.
Undefinable or Impenetrable. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/impenetrable/undefinable.
Google Ngram Viewer shows how "impenetrable" and "undefinable" have occurred on timeline