different between obscure vs impenetrable

English

Etymology

From Middle English obscure, from Old French obscur, from Latin obsc?rus (“dark, dusky, indistinct”), from ob- +? *sc?rus, from Proto-Italic *skoiros, from Proto-Indo-European *(s)?eh?-.

Pronunciation

• (Received Pronunciation) IPA^(key): /?b?skj??(?)/, /?b?skj??(?)/
• (General American) IPA^(key): /?b?skj??/, /?b?skj?/
• Rhymes: -??(?), -??(?), -??(?)
• Hyphenation: ob?scure

Adjective

obscure (comparative obscurer or more obscure, superlative obscurest or most obscure)

1. Dark, faint or indistinct.
   • 1892, Denton Jaques Snider, Inferno, 1, 1-2 (originally by Dante Alighieri)

     I found myself in an obscure wood.

   • His lamp shall be put out in obscure darkness.

2. Hidden, out of sight or inconspicuous.
   • 1606, John Davies of Hereford, Bien Venu

     the obscure corners of the earth

3. Difficult to understand.

4. Not well-known.
5. Unknown or uncertain; unclear.

   The etymological roots of the word "blizzard" are obscure and open to debate.

Usage notes

• The comparative obscurer and superlative obscurest, though formed by valid rules for English, are less common than more obscure and most obscure.

Synonyms

• (dark): cimmerian, dingy; See also Thesaurus:dark
• (faint or indistinct): fuzzy, ill-defined; See also Thesaurus:indistinct
• (hidden, out of sight): occluded, secluded; See also Thesaurus:hidden
• (difficult to understand): fathomless, inscrutable; See also Thesaurus:incomprehensible
• (not well-known): enigmatic, esoteric, mysterious; See also Thesaurus:arcane

Antonyms

• clear

Derived terms

• obscurable
• unobscurable
• obscureness

Related terms

• obscurity
• obscuration

Translations

Verb

obscure (third-person singular simple present obscures, present participle obscuring, simple past and past participle obscured)

1. (transitive) To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious.
   • c. 1688', William Wake, Preparation for Death

     There is scarce any duty which has been so obscured in the writings of learned men as this.

2. (transitive) To hide, put out of sight etc.
   • 1994, Bill Watterson, Homicidal Psycho Jungle Cat, page 62

     I realized that the purpose of writing is to inflate weak ideas, obscure poor reasoning, and inhibit clarity.

3. (intransitive, obsolete) To conceal oneself; to hide.

   • How! There's bad news. / I must obscure, and hear it.

Synonyms

• (to render obscure; to darken; dim): becloud, bedarken, bedim, bemist

Translations

Further reading

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

Anagrams

• Cuberos

French

Pronunciation

• IPA^(key): /?p.sky?/

Adjective

obscure

1. feminine singular of obscur

Anagrams

• courbes

Latin

Adjective

obsc?re

1. vocative masculine singular of obsc?rus

References

• obscure in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• obscure in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• obscure in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette

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.