Mountainous
/mˈaʊntənəs/
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Definition
(adj) Having many mountains; characterized by mountains; of the nature of a mountain; rough (terrain); rocky.
Sentence Examples
The capital of Ecuador is Quito, in the mountainous province of Pichincha.
Armenia is a mountainous country.
CEFR Practice Quiz
The northern region of the small country is very ____, with several steep peaks and narrow valleys that are difficult to access by car.