mountainous
adjective
moun·tain·ous
ˈmau̇n-tə-nəs 
ˈmau̇nt-nəs
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
For eastern Cuba, storm total rainfall of 10 to 20 inches is expected through Wednesday, with local amounts to 25 inches expected over mountainous terrain.
—
Miami Herald Hurricane Bot, Miami Herald, 29 Oct. 2025
The production center was found in a mountainous area in southeastern Turkey, near the village of Oymakli.
—Andrea Margolis, FOXNews.com, 29 Oct. 2025
Jamaica is mountainous, which almost certainly means mudslides from the massive rains.
—Heidi Blake, New Yorker, 28 Oct. 2025
Hurricane Melissa is expected to weaken over Jamaica as its inner core is disrupted by the mountainous terrain.
—Jennifer Borresen, USA Today, 28 Oct. 2025
See All Example Sentences for mountainous
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Miami Herald Hurricane Bot, Miami Herald, 29 Oct. 2025
The production center was found in a mountainous area in southeastern Turkey, near the village of Oymakli.
—Andrea Margolis, FOXNews.com, 29 Oct. 2025
Jamaica is mountainous, which almost certainly means mudslides from the massive rains.
—Heidi Blake, New Yorker, 28 Oct. 2025
Hurricane Melissa is expected to weaken over Jamaica as its inner core is disrupted by the mountainous terrain.
—Jennifer Borresen, USA Today, 28 Oct. 2025
See All Example Sentences for mountainous
Cite this Entry
“Mountainous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mountainous. Accessed 31 Oct. 2025.
Copy CitationKids Definition
mountainous
adjective
moun·tain·ous
ˈmau̇nt-ᵊn-əs
-nəs
1
: having many mountains
2
: resembling a mountain : huge
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