Synonym: cragged, craggy, hilly. Similar words: mountain, mountain man, mountaineering, fountain, untainted, tantamount, insurmountable, maintain. Meaning: ['maʊntnəs /-tɪnəs] 
adj. 1. having hills and crags 2. like a mountain in size and impressiveness 3. containing many mountains.
adj. 1. having hills and crags 2. like a mountain in size and impressiveness 3. containing many mountains. 
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1. They stopped scout in the mountainous area.
2. The Antarctic is a mountainous area.
3. The road traverses a wild and mountainous region.
4. The ship sank in mountainous seas.
5. The mountainous terrain rules out most forms of agriculture.
6. The storm heaved the sea into mountainous weaves.
7. The countryside is more mountainous in the north .
8. The eastern part of the country is very mountainous.
9. They were struggling with mountainous debts.
10. The storm heaved the sea into mountainous waves.
11. Barbaric customs still prevail in the mountainous area.
12. This part of the country is very mountainous.
13. We proceeded by car on the mountainous roads.
14. Varese Ligure is a small town in mountainous country east of Genoa.
15. Enemy forces remain active in the mountainous areas around the city.
16. Parts of the mountainous region in the north of the country have still not been mapped.
17. Mainly mountainous country,(sentencedict.com) often treeless.
18. Rescue operations were hampered by the mountainous terrain.
19. The mainland of Greece is mountainous and largely infertile.
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20. Mountainous waves pounded the coast.
21. It's green, mountainous and wildly scenic.
22. A small, mountainous country with a population of under three million people, it has long been free from colonial domination.
23. Mountainous areas, coastal wetlands, tundra, and temperate forests are under particular threat.
24. Most of the clusters, intriguingly, are in mountainous areas, where levels of ultraviolet light are high.
25. Army helicopters could not land because of the mountainous terrain and dense jungle.
26. In these ancient, mountainous regions - the Alps and the Carpathians - the City stopped abruptly, edging the wilderness.
27. These mountains converge in the high mountainous land to the south called the Vaults.
28. She reflected that there were still a lot of poor people living in the mountainous districts.
29. Three years ago they came here and ranched the mountainous dry land.
30. The plan is designed to reduce some of the company's mountainous debt.
More similar words: mountain, mountain man, mountaineering, fountain, untainted, tantamount, insurmountable, maintain, mount, amount, ruinous, heinous, ominous, mounted, luminous, mutinous, numinous, amount to, surmount, mounting, dismount, contain, ruinously, ominously, paramount, plantain, voluminous, libidinous, mountebank, surmounted.