How do you pronounce "mountainous"?

In American English: /ˈmaʊntənəs/ (MOWNT-uhn-uhs). In British English: /mˈaʊntɪnəs/ (M-ownt-in). In Canadian English: /ˈmaʊntənəs/ (MOWNT-uhn-uhs). In Australian English: /mˈaʊntɪnəs/ (M-ownt-in).

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

Yes. In American English it's pronounced /ˈmaʊntənəs/ (MOWNT-uhn-uhs), while in British English it's /mˈaʊntɪnəs/ (M-ownt-in).

How to Pronounce "mountainous"

🗣️pronounce.how

mountainous

regional

/ˈmaʊntənəs/

MOWNT-uhn-uhs

Syllable Breakdown

maʊntmoun·əntain·əsous

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

All Variants

Browse by Letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Edit on GitHub Report an issue

Last updated: 2026-02-14