How do you pronounce "unbeknownst"?

In American English: /ənbiːˈnoʊnst/ (uhnb-ee-NOHNST). In British English: /ʌnbɪnˈəʊnst/ (uhnb-in-OHNST). In Canadian English: /ənbiːˈnoʊnst/ (uhnb-ee-NOHNST). In Australian English: /ʌnbɪnˈəʊnst/ (uhnb-in-OHNST).

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

Yes. In American English it's pronounced /ənbiːˈnoʊnst/ (uhnb-ee-NOHNST), while in British English it's /ʌnbɪnˈəʊnst/ (uhnb-in-OHNST).

How to Pronounce "unbeknownst"

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unbeknownst

regional

/ənbiːˈnoʊnst/

uhnb-ee-NOHNST

Syllable Breakdown

ənbun·iːbe·noʊnstknownst

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14