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   impenetrable

   /ɪmˈpɛnɪtrəbl/

   adjective

   • 1. impossible to pass through or enter: "a dark, impenetrable forest" Similar impassableunpassableinaccessibleunnavigableuntraversablepathlesstracklessuntroddendensethickovergrownjunglyjungle-likearchaic:thicksetOpposite accessiblesparse
   • ▪ (of matter) incapable of occupying the same space as other matter at the same time.
   • 2. impossible to understand: "her expression was impenetrable" Similar incomprehensibleimpossible to understandunfathomablefathomlessinexplicableunintelligibleunclearbafflingbewilderingpuzzlingperplexingconfusingabstruseobscureopaquereconditeinscrutablemysteriouscrypticDelphiccomplexcomplicateddifficulthardarchaic:wilderingrare:insolvableOpposite clear

   Word Origin late Middle English: via French from Latin impenetrabilis, from in- ‘not’ + penetrabilis ‘able to be pierced’, from the verb penetrare (see penetrate).

   Derivatives

   • 1. impenetrability noun
   • 2. impenetrably adverb
   • 3. impenetrableness noun

   Scrabble Points: 18

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2. dictionary.cambridge.org › dictionary › englishIMPENETRABLE | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   adjective. uk / ɪmˈpen.ɪ.trə.b ə l / us / ɪmˈpen.ə.trə.b ə l / Add to word list. impossible to see through or go through: Outside, the fog was thick and impenetrable. an impenetrable barrier. Synonyms. impermeable. impervious (SUBSTANCE) specialized. Compare. waterproof adjective. watertight (NO WATER) weatherproof adjective. Opposite.

3. www.merriam-webster.com › dictionary › impenetrableImpenetrable Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › impenetrable

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   The meaning of IMPENETRABLE is incapable of being penetrated or pierced. How to use impenetrable in a sentence.

4. dictionary.cambridge.org › us › dictionaryIMPENETRABLE definition | Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   impossible to see through or go through: Outside, the fog was thick and impenetrable. an impenetrable barrier. Synonyms. impermeable. impervious (SUBSTANCE) specialized. Compare. waterproof adjective. watertight (NO WATER) weatherproof adjective. Opposite. permeable formal. impossible to understand:

5. www.dictionary.com › browse › impenetrableIMPENETRABLE Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › impenetrable

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   adjective. not penetrable; that cannot be penetrated, pierced, entered, etc. inaccessible to ideas, influences, etc. incapable of being understood; inscrutable; unfathomable: an impenetrable mystery. Synonyms: hidden, obscure, mysterious, incomprehensible. Antonyms: lucid, clear. Physics. possessing impenetrability. impenetrable. / ɪmˈpɛnɪtrəbəl /

6. www.collinsdictionary.com › dictionary › englishIMPENETRABLE definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   If you describe something such as a barrier or a forest as impenetrable, you mean that it is impossible or very difficult to get through.

7. www.vocabulary.com › dictionary › impenetrableImpenetrable - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › impenetrable

   Impenetrable describes something that's impossible to get through. Whether it's a brick wall or a difficult reading passage, something impenetrable won't let you in.

8. www.thefreedictionary.com › impenetrableImpenetrable - definition of impenetrable by The Free Dictionary

   www.thefreedictionary.com › impenetrable

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   1. incapable of being penetrated, pierced, or entered. 2. unsympathetic to ideas or influences. 3. incapable of being understood; unfathomable: an impenetrable mystery. 4. possessing impenetrability. [1425–75; late Middle English < Latin]

9. www.oxfordlearnersdictionaries.com › impenetrableimpenetrable adjective - Definition, pictures, pronunciation and...

   www.oxfordlearnersdictionaries.com › impenetrable

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   Definition of impenetrable adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

10. dictionary.cambridge.org › learner-english › impenetrableimpenetrable | meaning - Cambridge Learner's Dictionary

    dictionary.cambridge.org › learner-english › impenetrable

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    impenetrable definition: 1. impossible to understand: 2. impossible to see through or go through: . Learn more.

11. www.merriam-webster.com › thesaurus › impenetrableIMPENETRABLE Synonyms: 141 Similar and Opposite Words - ...

    www.merriam-webster.com › thesaurus › impenetrable

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    Synonyms for IMPENETRABLE: dense, impervious, impassable, thick, impermeable, close, impregnable, sturdy; Antonyms of IMPENETRABLE: permeable, soft, negotiable, passable, penetrable, flexible, elastic, giving.