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
Plastics from water bottles to car interiors are a big part of mountainous landfills and trash dumps in the oceans.
—
Ian Dexter Palmer, Forbes.com, 4 Aug. 2025
Officials are now focusing their search in a mountainous area near Stumptown Road.
—Eduardo Cuevas, USA Today, 2 Aug. 2025
The incident highlights ongoing concerns about mental health support for military veterans and the challenges law enforcement faces when conducting searches in remote, mountainous regions.
—Adeola Adeosun, MSNBC Newsweek, 2 Aug. 2025
Town locked down as search for the suspect gets underway
A shooting at a Montana bar left four people dead Friday, prompting a lockdown in a town several miles away as authorities searched for the suspect in a wooded, mountainous area.
—Arkansas Online, 2 Aug. 2025
See All Example Sentences for mountainous
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Ian Dexter Palmer, Forbes.com, 4 Aug. 2025
Officials are now focusing their search in a mountainous area near Stumptown Road.
—Eduardo Cuevas, USA Today, 2 Aug. 2025
The incident highlights ongoing concerns about mental health support for military veterans and the challenges law enforcement faces when conducting searches in remote, mountainous regions.
—Adeola Adeosun, MSNBC Newsweek, 2 Aug. 2025
Town locked down as search for the suspect gets underway
A shooting at a Montana bar left four people dead Friday, prompting a lockdown in a town several miles away as authorities searched for the suspect in a wooded, mountainous area.
—Arkansas Online, 2 Aug. 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 7 Aug. 2025.
Copy CitationKids Definition
mountainous
adjective
moun·tain·ous
ˈmau̇nt-ᵊn-əs
-nəs
1
: having many mountains
2
: resembling a mountain : huge
Love words? Need even more definitions?
Merriam-Webster unabridged
Share