How do you pronounce "nightmarish"?

In American English: /ˈnaɪtˌmɛrɪʃ/ (NEYET-mehr-ish). In British English: /nˈaɪtmeəɹɪʃ/ (N-eyetm-eh-uhr). In Canadian English: /ˈnʌɪtˌmɛrɪʃ/ (NUH-it-mehr-ish). In Australian English: /nˈaɪtmeəɹɪʃ/ (N-eyetm-eh-uhr).

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

Yes. In American English it's pronounced /ˈnaɪtˌmɛrɪʃ/ (NEYET-mehr-ish), while in British English it's /nˈaɪtmeəɹɪʃ/ (N-eyetm-eh-uhr).

How to Pronounce "nightmarish"

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nightmarish

regional

/ˈnaɪtˌmɛrɪʃ/

NEYET-mehr-ish

Syllable Breakdown

naɪtnight·mɛrmar·ɪʃish

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14