[{"word":"impenetrable","phonetic":"/ɪmˈpɛnətɹəbəl/","phonetics":[{"text":"/ɪmˈpɛnətɹəbəl/","audio":""}],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"Not penetrable.","synonyms":[],"antonyms":[],"example":"The fortress is impenetrable, so it cannot be taken."},{"definition":"Incomprehensible; fathomless; inscrutable.","synonyms":[],"antonyms":[],"example":"Business jargon makes this document impenetrable, I can't understand it."},{"definition":"Opaque; obscure; not translucent or transparent.","synonyms":[],"antonyms":[],"example":"When night falls, she cloaks the world in impenetrable darkness."}],"synonyms":["impregnable","unfathomable"],"antonyms":["fathomable","penetrable","pregnable"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/impenetrable"]}]