How do you pronounce "unsuccessfully"?

In American English: /ˌənsəkˈsɛsfəli/ (uhns-uhk-SEHSF-uhl-ee). In British English: /ʌnsəksˈɛsfəli/ (uhns-uhks-EHSF-uhl-ee). In Canadian English: /ˌənsəkˈsɛsfəli/ (uhns-uhk-SEHSF-uhl-ee). In Australian English: /ʌnsəksˈɛsfəli/ (uhns-uhks-EHSF-uhl-ee).

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

Yes. In American English it's pronounced /ˌənsəkˈsɛsfəli/ (uhns-uhk-SEHSF-uhl-ee), while in British English it's /ʌnsəksˈɛsfəli/ (uhns-uhks-EHSF-uhl-ee).

How to Pronounce "unsuccessfully"

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unsuccessfully

regional

/ˌənsəkˈsɛsfəli/

uhns-uhk-SEHSF-uhl-ee

Syllable Breakdown

ənsun·əksuc·sɛsfcess·əlful·ily

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14