How do you pronounce "spontaneous"?

In American English: /spɑːnˈteɪniːəs/ (spahn-TAYN-ee-uhs). In British English: /spɒntˈeɪnɪəs/ (spont-AYN-i-uhs). In Canadian English: /spɑːnˈteɪniːəs/ (spahn-TAYN-ee-uhs). In Australian English: /spɒntˈeɪniəs/ (spont-AYN-ee-uhs).

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

Yes. In American English it's pronounced /spɑːnˈteɪniːəs/ (spahn-TAYN-ee-uhs), while in British English it's /spɒntˈeɪnɪəs/ (spont-AYN-i-uhs).

How to Pronounce "spontaneous"

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spontaneous

regional

/spɑːnˈteɪniːəs/

spahn-TAYN-ee-uhs

Syllable Breakdown

spɑːnspon·teɪnta·iːne·əsous

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14