different between unintelligible vs impenetrable

English

Etymology

un- +? intelligible.

Pronunciation

• IPA^(key): /??n?n?t?l?d??b?l/

Adjective

unintelligible (comparative more unintelligible, superlative most unintelligible)

1. Not intelligible; unable to be understood.
   • 1697, John Locke, Letter to the Bishop of Worcester (second reply):

     And indeed, my lord, there are so many passages in your writing in this controversy with me, which for their construction, as well as otherwise, are so unintelligible to me, that if I should be so unmannerly as to measure your understanding by mine, I should not know what to think of them.

Synonyms

• inscrutable, unexplainable; See also Thesaurus:incomprehensible

Antonyms

• intelligible; See also Thesaurus:comprehensible

Translations

See also

• incomprehensible
• unfathomable
• fathomless

English

Etymology

From Middle French impenetrable, from Latin impenetrabilis.

Pronunciation

• IPA^(key): /?m?p?n?t??b?l/, /?m?p?n?t??b?l/
• Hyphenation: im?pen?e?tra?ble

Adjective

impenetrable (not comparable)

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. (figuratively) Incomprehensible; fathomless; inscrutable.

   Business jargon makes this document impenetrable, I can't understand it.

3. Opaque; obscure; not translucent or transparent.

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

Synonyms

• (not penetrable): impregnable, unfathomable
• (incomprehensible): See also Thesaurus:incomprehensible

Antonyms

• (not penetrable): penetrable, pregnable, fathomable
• (incomprehensible): See also Thesaurus:comprehensible

Translations

Catalan

Etymology

From Latin impenetr?bilis.

Adjective

impenetrable (masculine and feminine plural impenetrables)

1. impenetrable

Further reading

• “impenetrable” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “impenetrable” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “impenetrable” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “impenetrable” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

Spanish

Etymology

From Latin impenetr?bilis.

Adjective

impenetrable (plural impenetrables)

1. impenetrable

Further reading

• “impenetrable” in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014.