Skip to content

impenetrable

adjective

No English definition recorded for this entry.

L337523 on Wikidata ↗

Wiktionary

Pronunciation: /ɪmˈpɛnətɹəbəl/ / /ɪmˈpɛnɪtɹəbəl/

adj

Etymology: From Middle English inpenetrabel, inpenetrabyle, from Middle French impenetrable or directly from its etymon, Latin impenetrābilis. By surface analysis, im- + penetrable.

  1. Not penetrable.

    The fortress is impenetrable, so it cannot be taken.

    The avalanche spread and stopped, locking everything it carried into an icy cocoon. It was now a jagged, virtually impenetrable pile of ice, longer than a football field and nearly as wide.

  2. Opaque; obscure; not translucent or transparent.

    When night falls, she cloaks the world in impenetrable darkness.

  3. Incomprehensible; fathomless; inscrutable.

    Business jargon makes this document impenetrable—I can’t understand it.

noun

Etymology: From Middle English inpenetrabel, inpenetrabyle, from Middle French impenetrable or directly from its etymon, Latin impenetrābilis. By surface analysis, im- + penetrable.

  1. 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.