How do you pronounce "undoubtedly"?

In American English: /ənˈdaʊtɪdli/ (uhn-DOWT-idl-ee). In British English: /ɐndˈaʊtɪdli/ (ⱯND-owt-idl). In Canadian English: /ənˈdʌʊtɪdli/ (uhn-DUH-uut-idl-ee). In Australian English: /ʌndˈaʊtɪdli/ (uhnd-OWT-idl-ee).

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

Yes. In American English it's pronounced /ənˈdaʊtɪdli/ (uhn-DOWT-idl-ee), while in British English it's /ɐndˈaʊtɪdli/ (ⱯND-owt-idl).

How to Pronounce "undoubtedly"

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undoubtedly

regional

/ənˈdaʊtɪdli/

uhn-DOWT-idl-ee

Syllable Breakdown

ənun·daʊtdoubt·ɪdled·ily

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14