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adj

impenetrable

ihm-PEH-nuht-ruh-buhl
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Impenetrable (adj) means Impossible to pass through or enter. Example: “The castle walls were considered impenetrable.”

adj
1
Impossible to pass through or enter.
"The castle walls were considered impenetrable."
2
Too complicated or unclear to understand.
"The tax code is nearly impenetrable to the average person."

How to use impenetrable

Learner’s notes

In plain EnglishImpossible to get through, whether physically (a wall) or mentally (a confusing text).

Common pairings
impenetrable fortress impenetrable jargon impenetrable defense
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Word forms

Plural
impenetrables
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The castle walls were considered _____.

Etymology

From Latin impenetrabilis; im- + penetrable.

Origin: Latin

Antonyms

Related words

Rhymes for impenetrable

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Frequently asked questions

What does “impenetrable” mean?
The word “impenetrable” means impossible to pass through or enter. In plain terms, impossible to get through, whether physically (a wall) or mentally (a confusing text).
How do you pronounce “impenetrable”?
“Impenetrable” is pronounced ihm-PEH-nuht-ruh-buhl (/ɪmˈpɛnətɹəbəl/ in IPA).
How do you use “impenetrable” in a sentence?
Here is “impenetrable” used in a sentence: “The castle walls were considered impenetrable.”
What part of speech is “impenetrable”?
“Impenetrable” is an adjective.
Where does the word “impenetrable” come from?
The word “impenetrable” comes from Latin. From Latin impenetrabilis; im- + penetrable.
How many meanings does “impenetrable” have?
“Impenetrable” has 2 distinct senses listed in this dictionary. The most common is: impossible to pass through or enter.

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