mountainous
adjective
having hills and crags
“hilly terrain”
like a mountain in size and impressiveness
“mountainous waves”
“a mountainous dark man”
containing many mountains
Source: WordNet 3.1, Princeton University
Mountainous meaning
What does “mountainous” mean? Definitions, examples, synonyms and opposites.
“mountainous” is an adjective with 3 meanings. Its most common meaning is: having hills and crags.