Thesaurus

impregnable

adjective

Synonyms & Antonyms of impregnable

1 incapable of being defeated, overcome, or subdued
  • an impregnable fortress that had foiled one invader after another over the centuries

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Antonyms for impregnable

2 impossible to get through or into
  • the castle's supposedly impregnable walls

Synonyms for impregnable

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Antonyms for impregnable

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The first known use of impregnable was in the 15th century

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impregnability

impregnable

impregnableness

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Cite this Entry

“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 26 Jan. 2022.

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More from Merriam-Webster on impregnable

Nglish: Translation of impregnable for Spanish Speakers

Britannica English: Translation of impregnable for Arabic Speakers

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