impenetrable
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impenetrable
- /ɪmˈpɛnətɹəbəl/
- /ɪmˈpɛnɪtɹəbəl/
Where it comes from
From Middle English inpenetrabel, inpenetrabyle, from Middle French impenetrable or directly from its etymon, Latin impenetrābilis. By surface analysis, im- + penetrable.
adjective inpenetrable
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Not penetrable.
The fortress is impenetrable, so it cannot be taken.
Similar: impermeable, impregnable · Opposite: penetrable, permeable, pregnable
- Opaque; obscure; not translucent or transparent. When night falls, she cloaks the world in impenetrable darkness.
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Incomprehensible; fathomless; inscrutable.
Business jargon makes this document impenetrable—I can’t understand it.
Similar: unfathomable, abstruse, Chinese, dense, enigmatic, fathomless, bottomless, Greek, inapprehensible, incognizable, incomprehensible, ineffable · Opposite: fathomable, apprehensible, clear, limpid, comprehensible, explainable, explicable, explicatable, graspable, illuminable, intelligible, lucid
noun impenetrables · inpenetrable
- A person not openly given to friendship. I should lose the reputation that I am gradually acquiring among our impenetrables here, were I to confess the excitement which I felt at the idea of entering his house—the house of that great general under whose command you made your first charge.
Thesaurus
Closest in meaning: uncomprehensible, incomprehensible, heavy, dense, thick, impassable, insuperable, insurmountable, inaccessible, unfathomable, inconceivable, opaque, unintelligible, inaudible, inscrutable, mysterious
Translations
Every language
adj not penetrable
| Español | impenetrable |
|---|---|
| 中文 | 不能通过的, 不能渗透的 |
| हिन्दी | अभेद्य abhedya |
| Português | impenetrável |
| Français | impénétrable |
| Deutsch | undurchlässig |
| Ελληνικά | αδιαπέραστος adiapérastos |
| Română | impenetrabil, de nepătruns, de nestrăpuns |
| Русский | непроница́емый nepronicájemyj, непроходи́мый neproxodímyj |
Talk about this word "impenetrable." Wiktionary, via Micwyn, micwyn.com/word/impenetrable. Accessed 6 Nov. 2026. impenetrable. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/impenetrable "impenetrable." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/impenetrable.Cite this
@misc{impenetrable_2026,
title = {impenetrable},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/impenetrable},
urldate = {2026-11-06}
}
