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Definition of mountainous
mountainous
/ˈmaʊn.tɪ.nəs/
moun · tain · ous
Adverb:mountainously
mountainous Lexical Profile
CEFR
B2
Grade
5
Tier
2
Usage
Top 10k
Syllables
3
mountainous Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Having many mountains; characterized by rugged, elevated terrain.
Example
"The expedition traveled through a remote, mountainous region in northern Nepal."
2
Resembling a mountain in size or bulk; huge or overwhelming.
Example
"The Sailors braced themselves against the mountainous waves during the Atlantic storm."
Synonyms
View all synonyms for mountainous Antonyms
View all antonyms for mountainous• Nearby Words
Word Origin & Etymology
Entered English in the late 14th century via Old French 'montaignos', derived from Vulgar Latin 'montanea' (mountain), which comes from Latin 'mons' (genitive 'montis').
Cite this Entry
Wordmom. (2026). Definition of Mountainous. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/mountainous