Impenetrable and Tough

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mutual synonyms sentence examples

Impenetrable

Impenetrable adjective - Impossible to get through or into.
Usage example: the ancient temple was surrounded by vast stretches of impenetrable jungle
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Synonyms for Impenetrable
Antonyms for Impenetrable
Tough and impenetrable are semantically related. In some cases you can use "Tough" instead an adjective "Impenetrable".
Nearby Words: impenetrability, impenetrably

Tough

Tough adjective - Not easily chewed.
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Synonyms for Tough
Antonyms for Tough
Impenetrable and tough are semantically related. Sometimes you can use "Impenetrable" instead an adjective "Tough".
Nearby Words: toughness, toughen, toughening, tougher, toughed

Mutual synonyms

Related pairs

Both words in one sentence

  • Achilles' Heel His Achilles Heel turns out to be the same thing that makes him so tough: Because his suit is completely impenetrable, he can only perspire through his exposed face.
    Source: Achilles' Heel
  • Combine that besides being just damn tough, he wears nearly impenetrable armor.
    Source: Lightning Bruiser / Literature
Cite this Source
Tough and Impenetrable. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/impenetrable/tough
Impenetrable & Tough. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/impenetrable/tough>.
Tough or Impenetrable. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/impenetrable/tough.

Synonyms for impenetrable


Synonyms for tough

Google Ngram Viewer shows how "impenetrable" and "tough" have occurred on timeline