How do you pronounce "smoothest"?

In American English: /ˈsmuːðəst/ (SMOOTH-uhst). In British English: /smˈuːðɪst/ (SM-ooth). In Canadian English: /ˈsmuːðəst/ (SMOOTH-uhst). In Australian English: /smˈuːðɪst/ (SM-ooth).

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

Yes. In American English it's pronounced /ˈsmuːðəst/ (SMOOTH-uhst), while in British English it's /smˈuːðɪst/ (SM-ooth).

How to Pronounce "smoothest"

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smoothest

regional

/ˈsmuːðəst/

SMOOTH-uhst

Syllable Breakdown

smuːðsmoo·əstthest

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14