Impregnable and Laborious

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Impregnable adjective - Incapable of being defeated, overcome, or subdued.

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Laborious and impregnable are semantically related. In some cases you can use "Laborious" instead an adjective "Impregnable".

Laborious adjective - Involved in often constant activity.

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Impregnable and laborious are semantically related. Sometimes you can use "Impregnable" instead an adjective "Laborious".

Cite this Source

Laborious and Impregnable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impregnable/laborious

Impregnable & Laborious. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impregnable/laborious>.

Laborious or Impregnable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impregnable/laborious.

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