Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Waterproof and impregnable are semantically related. In some cases you can use "Waterproof" instead an adjective "Impregnable".
Waterproof
Waterproof adjective - Made of or treated with material that does not allow water to penetrate.
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Synonyms for Waterproof
Impregnable and waterproof are semantically related. Sometimes you can use "Impregnable" instead an adjective "Waterproof".
Nearby Words: waterproofed, waterproofing
Mutual synonyms
Related pairs
- close and impregnable
- close and waterproof
- snug and impregnable
- snug and waterproof
- secure and impregnable
- secure and waterproof
- tight and impregnable
- tight and waterproof
- solid and impregnable
- solid and waterproof
- staunch and impregnable
- staunch and waterproof
- impenetrable and impregnable
- impenetrable and waterproof
Cite this Source
Waterproof and Impregnable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impregnable/waterproof
Impregnable & Waterproof. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impregnable/waterproof>.
Waterproof or Impregnable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impregnable/waterproof.
Google Ngram Viewer shows how "impregnable" and "waterproof" have occurred on timeline