35
strong(adjective, feature, characteristic, size)
35
swingeing(adjective, feature, characteristic, size)
35
terrific(adjective, feature, characteristic, size)
24
hilly(adjective, rough, mountain, height, bumpy)
16
gargantuan(adjective, big, large, grand, impressive)
16
massive(adjective, great, big, large, grand)
14
titanic(adjective, big)
11
lofty(adjective, high, grand, impressive, overwhelming)
10
alpine(adjective, large, mountain, height, hilly)
10
craggy(adjective, rough, bumpy, rocky, undulating)
10
mammoth(noun, adjective, big, large, huge)
10
towering(adjective, high, large, huge, lofty)
10
vast(adjective, great, big, large, huge)
9
upland(adjective, height)
8
giant(adjective, great, big, large, huge)
8
montane(adjective, adverb, high, mountain, lofty)
8
rangy(adjective, adverb, high, mountain, lofty)
8
whopping(adjective, great, slang, big, large)
7
elephantine(adjective, big, huge)
6
elevated(adjective, high, grand, lofty, impressive)
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APASmart Define. (2016). mountainous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mountainous/thesaurus/synonyms
ChicagoSmart Define. 2016. "mountainous thesaurus" https://smartdefine.org/mountainous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, mountainous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mountainous/thesaurus/synonyms>.
MLASmart Define. "mountainous thesaurus" 1 March 2016. Web. 22 September 2026. <https://smartdefine.org/mountainous/thesaurus/synonyms>