- (a.) Inhabiting mountains.
- (a.) Full of or containing, mountains; as, the mountainous country of the Swiss.
- (a.) Large as or resembling, a mountain; huge; of great bulk; as, a mountainous heap.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mountainous. Retrieved September 21, 2026, from http://smartdefine.org/mountainous/definitions/2034802 |
| Chicago | Webster's. 2011. "mountainous" http://smartdefine.org/mountainous/definitions/2034802 (accessed September 21, 2026). |
| Harvard | Webster's 2011, mountainous, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/mountainous/definitions/2034802>. |
| MLA | Webster's. "mountainous" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/mountainous/definitions/2034802> |