different between difficult vs impenetrable

English

Etymology

From Middle English difficult (ca. 1400), a back-formation from difficultee (whence modern difficulty), from Old French difficulté, from Latin difficultas, from difficul, older form of difficilis (“hard to do, difficult”), from dis- + facilis (“easy”); see difficile. Replaced native Middle English earveþ (“difficult, hard”), from Old English earfoþe (“difficult, laborious, full of hardship”), cognate to German Arbeit (“work”).

Pronunciation

• IPA^(key): /?d?f?k?lt/

Adjective

difficult (comparative difficulter or more difficult, superlative difficultest or most difficult)

1. Hard, not easy, requiring much effort.

   However, the difficult weather conditions will ensure Yunnan has plenty of freshwater.

   • There is not the strength or courage left me to venture into the wide, strange, difficult world, alone.
2. (often of a person, or a horse, etc) Hard to manage, uncooperative, troublesome.

3. (obsolete) Unable or unwilling.

Usage notes

Difficult implies that considerable mental effort or physical skill is required, or that obstacles are to be overcome which call for sagacity and skill in the doer; as, a difficult task. Thus, "hard" is not always synonymous with difficult. Examples include a difficult operation in surgery and a difficult passage by an author (that is, a passage which is hard to understand).

Synonyms

• burdensome, cumbersome, hard
• see also Thesaurus:difficult

Derived terms

• difficultly

Translations

Verb

difficult (third-person singular simple present difficults, present participle difficulting, simple past and past participle difficulted)

1. (obsolete, transitive) To make difficult; to impede; to perplex.
   • August 9 1678, William Temple, letter to Joseph Williamson

     their Excellencies having desisted from their pretensions , which had difficulted the peace

Further reading

• difficult in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• difficult in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

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.