impenetrabilis

== Latin == === Etymology === From in- + penetrābilis. === Pronunciation === (Classical Latin) IPA(key): [ɪm.pɛ.nɛˈtraː.bɪ.lɪs] (modern Italianate Ecclesiastical) IPA(key): [im.pe.neˈtraː.bi.lis] === Adjective === impenetrābilis (neuter impenetrābile); third-declension two-termination adjective impenetrable unconquerable, unyielding ==== Declension ==== Third-declension two-termination adjective. ==== Descendants ==== === References === “impenetrabilis”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press “impenetrabilis”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.