How do you pronounce "ostentatious"?

In American English: /ˌɑːstənˈteɪʃəs/ (ahst-uhn-TAYSH-uhs). In British English: /ˌɒstəntˈeɪʃəs/ (ost-uhnt-AYSH-uhs). In Canadian English: /ˌɑːstənˈteɪʃəs/ (ahst-uhn-TAYSH-uhs). In Australian English: /ˌɒstəntˈeɪʃəs/ (ost-uhnt-AYSH-uhs).

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

Yes. In American English it's pronounced /ˌɑːstənˈteɪʃəs/ (ahst-uhn-TAYSH-uhs), while in British English it's /ˌɒstəntˈeɪʃəs/ (ost-uhnt-AYSH-uhs).

How to Pronounce "ostentatious"

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ostentatious

regional

/ˌɑːstənˈteɪʃəs/

ahst-uhn-TAYSH-uhs

Syllable Breakdown

ɑːstos·ənten·teɪʃta·əstious

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14