mountainous
2 antonyms for mountainous — opposites grouped by meaning.
Adjective — Having many mountains; full of steep, rugged terrain.
Synonyms by Meaning
1. adjective
Having many mountains; full of steep, rugged terrain.
“The northern part of the country is mountainous and sparsely populated.”
Antonyms
How to use mountainous
The word patterns that sound natural to a native speaker.
Etymology
From "mountain" plus the suffix "-ous," echoing French montagneux and, further back, Latin montem, "mountain."
Full origin of mountainous →