Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Sure thing and impregnable are semantically related. In some cases you can use "Sure thing" instead an adjective "Impregnable".
Sure thing
Sure thing noun - One that is certain to succeed.
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Synonyms for Sure thing
Impregnable and sure thing are semantically related. Sometimes you can use "Impregnable" instead an adjective phrase "Sure thing".
Mutual synonyms
Cite this Source
Sure thing and Impregnable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impregnable/sure_thing
Impregnable & Sure thing. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impregnable/sure_thing>.
Sure thing or Impregnable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impregnable/sure_thing.
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