Flexible and Impenetrable

Opposite meaning words

Flexible adjective - Capable of being readily changed.

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Impenetrable is an antonym for flexible.

Nearby Words: flexibility, flex, flexibly, flexion

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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Flexible is an antonym for impenetrable.

Cite this Source

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

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

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

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