How do you pronounce "simultaneous"?

In American English: /ˌsaɪməlˈteɪniːəs/ (seyem-uhl-TAYN-ee-uhs). In British English: /sˌɪməltˈeɪniəs/ (s-im-UHLT-ayn-ee). In Canadian English: /ˌsaɪməlˈteɪniːəs/ (seyem-uhl-TAYN-ee-uhs). In Australian English: /sˌɪməltˈeɪniəs/ (s-im-UHLT-ayn-ee).

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

Yes. In American English it's pronounced /ˌsaɪməlˈteɪniːəs/ (seyem-uhl-TAYN-ee-uhs), while in British English it's /sˌɪməltˈeɪniəs/ (s-im-UHLT-ayn-ee).

How to Pronounce "simultaneous"

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simultaneous

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/ˌsaɪməlˈteɪniːəs/

seyem-uhl-TAYN-ee-uhs

Syllable Breakdown

saɪmsi·əlmul·teɪnta·iːne·əsous

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14