unimpregnable.
Not impregnable; capable of being pierced or assailed.
Meaning & usage
Not impregnable; capable of being pierced or assailed.
Incapable of being impregnated; impermeable or infertile.
The compound rendered the surface of the vessel unimpregnable.
Despite fertility treatment, one out of three women in the study remained unimpregnable.
Where this word comes from
From un- + impregnable.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.