Impenetrable and Known

Opposite meaning words

Impenetrable adjective - Impossible to get through or into.

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Known is an antonym for impenetrable in incomprehensible topic.

Known adjective - Apprehended with certainty.

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Impenetrable is an antonym for known.

Nearby Words: know, knowing

Although General Fong mistakenly claims it means "impenetrable city", both translations accurately reflect how up until the events of the series, Ba Sing Se was known as the safest city in the world, with impeccable defenses.

Source: Meaningful Name / Western Animation

Cite this Source

Known and Impenetrable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/impenetrable/known

Impenetrable & Known. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/impenetrable/known>.

Known or Impenetrable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/impenetrable/known.

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