76 entries under adjective topic. ×

6
high(mountain, lofty)
5
Brobdingnagian(big, giant)
5
cragged
5
cyclopean(big, giant)
5
great(big, huge, vast, massive)
5
massy(big, giant)
5
monster
5
titan(feature, characteristic, size)
4
Bunyanesque(big, giant)
4
bulky(great, big, huge, vast)
4
extensive(great, big, huge, vast)
4
heroic
3
aerial(high, mountain, height, lofty)
3
highland(large, hilly)
3
humongous(great, big, large, huge)
3
rugged(bumpy, weathered)
3
walloping(informal, big)
3
weighty
2
leviathan
2
mastodonic(big, giant)
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APASmart Define. (2016). mountainous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mountainous/thesaurus/synonyms
ChicagoSmart Define. 2016. "mountainous thesaurus" https://smartdefine.org/mountainous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, mountainous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mountainous/thesaurus/synonyms>.
MLASmart Define. "mountainous thesaurus" 1 March 2016. Web. 26 September 2026. <https://smartdefine.org/mountainous/thesaurus/synonyms>