How do you pronounce "boisterous"?

In American English: /ˈbɔɪstɝəs/ (BOYST-ur-uhs). In British English: /bˈɔɪstəɹəs/ (B-oyst-uhr). In Canadian English: /ˈbɔɪstɝəs/ (BOYST-ur-uhs). In Australian English: /bˈɔɪstəɹəs/ (B-oyst-uhr).

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

Yes. In American English it's pronounced /ˈbɔɪstɝəs/ (BOYST-ur-uhs), while in British English it's /bˈɔɪstəɹəs/ (B-oyst-uhr).

How to Pronounce "boisterous"

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boisterous

regional

/ˈbɔɪstɝəs/

BOYST-ur-uhs

Syllable Breakdown

bɔɪstbois·ɝter·əsous

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14