How do you pronounce "impenetrable"?

In American English: /ˌɪmˈpɛnətrəbəl/ (im-PEHN-uhtr-uhb-uhl). In British English: /ɪmpˈɛnɪtɹəbəl/ (imp-EHN-itr-uhb-uhl). In Canadian English: /ˌɪmˈpɛnətrəbəl/ (im-PEHN-uhtr-uhb-uhl). In Australian English: /ɪmpˈɛnɪtɹəbəl/ (imp-EHN-itr-uhb-uhl).

Is "impenetrable" pronounced differently in American and British English?

Yes. In American English it's pronounced /ˌɪmˈpɛnətrəbəl/ (im-PEHN-uhtr-uhb-uhl), while in British English it's /ɪmpˈɛnɪtɹəbəl/ (imp-EHN-itr-uhb-uhl).

How to Pronounce "impenetrable"

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impenetrable

regional

/ˌɪmˈpɛnətrəbəl/

im-PEHN-uhtr-uhb-uhl

Syllable Breakdown

ɪmim·pɛnpen·ətre·əbtra·əlble

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14