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

Keep scrolling for more

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 Human rights activists widely claim a multitude of international law violations in the historic, mountainous terrain. Fox News, "Cultural genocide? What China is doing in Tibet today," 1 Aug. 2020 Its views and spaces are almost identical, if a little less mountainous, but with only a fraction of the visitors. Aryana Azari, National Geographic, "Going camping this summer? Here’s what you need to know," 31 July 2020 Cole Ranch is among a few vineyards in Mendocino County that are being reimagined as a home for the grape varieties that thrive in Europe’s cold mountainous regions, especially the Alps. Esther Mobley,, "California winemakers bet on Mendocino County for Alpine-style wines," 1 July 2020 The state has some of the most considerable opportunities to take advantage of wind power in the nation thanks to its mountainous, rural terrain. Josh Siegel, Washington Examiner, "Cynthia Lummis bets on fossil fuels in seeking return to Congress," 9 July 2020 Just north of Taipei, Taiwan, Yangmingshan National Park is a 43-square-mile area known for its relaxing hot springs, mountainous terrain, and endemic birds. National Geographic, "Discover the planet’s last few ‘naturally quiet’ places," 17 June 2020 Also voted one of the world’s best islands, Palawan is beloved for its national parks, which protect both the mountainous island and the emerald-green waters surrounding it. Rebecca Ascher-walsh, Travel + Leisure, "The Top 10 Islands in Asia," 8 July 2020 In a mountainous town of Takayama, several houses were hit by a mudslide, with uprooted trees and other debris scattered around. Washington Post, "Japan battered by more heavy rain, floods, nearly 60 dead," 8 July 2020 Born of volcanism that began shaping the area millions of years ago, this mountainous parcel in northern Arizona is no stranger to fire. Mare Czinar, The Arizona Republic, "Easy Flagstaff hike shows the forest 10 years after Schultz Fire. Here's what to look for," 6 July 2020

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.

See More

First Known Use of mountainous

14th century, in the meaning defined at sense 1

Keep scrolling for more

Learn More about mountainous

Time Traveler for mountainous

Time Traveler

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

See more words from the same century

Statistics for mountainous

Last Updated

4 Aug 2020

Cite this Entry

“Mountainous.” Dictionary, Merriam-Webster, Accessed 11 Aug. 2020.

Keep scrolling for more

More Definitions for mountainous


How to pronounce mountainous (audio)

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

Keep scrolling for more

Comments on mountainous

What made you want to look up mountainous? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!