moun·​tain·​ous | \ ˈmau̇n-tə-nəs How to pronounce mountainous (audio) , ˈmau̇nt-nəs \

Definition of mountainous

1 : containing many mountains
2 : resembling a mountain : huge

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Other Words from mountainous

mountainously adverb
mountainousness noun

Examples of mountainous in a Sentence

the seemingly mountainous obstacles he had to overcome while growing up
Recent Examples on the Web Snow will gradually exit the mountainous region Friday and track more toward the central Plains. Jackson Dill And Monica Garrett, CNN, "Say it isn't snow! Winter-like weather is forecast into next week," 16 Apr. 2021 By December 2001, the U.S. force grows to 2,500 as troops scour the mountainous Tora Bora region looking for bin Laden. Washington Post, "The war in Afghanistan: America’s longest conflict in photos," 14 Apr. 2021 In the mountainous region of Guerrero, the agave plant grows wild and completely natural by seed propagation. Andrea Romano, Travel + Leisure, "This Luxury Tequila Brand Is Honoring a Lesser-known Region of Mexico With a New Mezcal," 29 Mar. 2021 Nagorno-Karabakh, a forested, mountainous territory that covers about 1,700 square miles, the size of the U.S. state of Delaware, has run its own affairs ever since, relying on Armenia's support. Fox News, "Nagorno-Karabakh fighting raises threat of deadly escalation," 14 Oct. 2020 The neighboring countries have long been at odds over the mountainous territory -- which is situated within the borders of Azerbaijan -- and fought a war over it that ended in 1994. Aren Melikyan, CNN, "President of Azerbaijan tells Armenia to 'leave our territory, and then, the war will stop'," 3 Oct. 2020 Taiwan is a mountainous island, and most of its 24 million people live in the flatlands along the northern and western coasts that are home to most of the island's farmland, biggest cities and high-tech industries. NBC News, "Taiwan prosecutors seek arrest in deadly train crash which killed 50," 3 Apr. 2021 Doses of the coronavirus vaccine had to reach Sabang, a city on the mountainous Weh Island in the Andaman Sea, by that afternoon. Washington Post, "‘There’s no virus here’: An epic vaccine race against all odds in Indonesia," 24 Mar. 2021 The 45 million Kurdish people are native to Western Asia’s mountainous region known as Kurdistan–stretching across southeastern Turkey, northwestern Iran, northern Iraq and Syria. Jackie Abramian, Forbes, "Kurdish Human Rights Advocate, Poet, Nazand Begikhani Fights For Gender Equality," 18 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mountainous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mountainous

14th century, in the meaning defined at sense 1

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Time Traveler for mountainous

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The first known use of mountainous was in the 14th century

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Statistics for mountainous

Last Updated

1 May 2021

Cite this Entry

“Mountainous.” Dictionary, Merriam-Webster, Accessed 12 May. 2021.

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More Definitions for mountainous



English Language Learners Definition of mountainous

: having many mountains
: extremely large


moun·​tain·​ous | \ ˈmau̇n-tə-nəs How to pronounce mountainous (audio) \

Kids Definition of mountainous

1 : having many mountains mountainous country
2 : like a mountain in size : huge a mountainous pile

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