35
mountain(adjective, feature, characteristic, size)
35
strong(adjective, feature, characteristic, size)
34
largest(adjective, feature, characteristic, size)
22
massive(adjective, great, big, large, huge)
20
vast(adjective, great, big, large, size)
20
mammoth(adjective, great, big, large, size)
19
gargantuan(adjective, big, large)
19
grand(adjective, strong, great, big, powerful)
18
titanic(adjective, great, big, large, size)
16
great(adjective, big, huge, vast, lofty)
14
majestic(adjective, strong, powerful, noble, grand)
13
elephantine(adjective, big, large, size, huge)
11
giant(adjective, great, big, large, size)
11
impressive(adjective, great, powerful, noble, grand)
10
historic(adjective, great, extraordinary, important, outstanding)
10
lofty(adjective, great, noble, high, grand)
10
memorable(adjective, significant, impressive, overwhelming, noteworthy)
9
Brobdingnagian(adjective, big, huge, vast, immense)
9
towering(adjective, great, grand, huge, impressive)
8
monolithic
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APASmart Define. (2016). monumental thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/monumental/thesaurus/synonyms
ChicagoSmart Define. 2016. "monumental thesaurus" https://smartdefine.org/monumental/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, monumental thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/monumental/thesaurus/synonyms>.
MLASmart Define. "monumental thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/monumental/thesaurus/synonyms>