Impenetrable
Impenetrable adjective - Impossible to get through or into.
Sealed and impenetrable are semantically related in state topic. In some cases you can use "Sealed" instead an adjective "Impenetrable", when it comes to topics like waterproof.
Nearby Words: impenetrability, impenetrably
Sealed
Sealed adjective - Closed or secured with or as if with a seal.
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Synonyms for Sealed
Impenetrable and sealed are semantically related in state topic. You can use "Impenetrable" instead an adjective "Sealed", if it concerns topics such as secured.
Mutual synonyms
Both words in one sentence
- But it's sealed off by an impenetrable gate both in the light and the dark world.
Source: Disconnected Side Area - Then they are sealed in a coffin, together, but with an impenetrable divider between them that will never be broken.
Source: Roleplay / Sburb Patch Notes -
He's sealed in an impenetrable bunker along with the only computer that can be used to stop the countdown to annihilation.
Source: Film / Olympus Has Fallen
Cite this Source
Sealed and Impenetrable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impenetrable/sealed
Impenetrable & Sealed. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impenetrable/sealed>.
Sealed or Impenetrable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impenetrable/sealed.
Google Ngram Viewer shows how "impenetrable" and "sealed" have occurred on timeline