18
giant(adjective, great, big, large, huge)
18
jumbo(adjective, great, big, substantial, large)
18
profound(adjective, hard, difficult, complex)
18
throng(noun, adjective, hard, difficult, complex)
18
voluminous(adjective, great, big, substantial, large)
16
cumbersome(adjective, solid, big, heavy, awkward)
16
extensive(adjective, great, big, substantial, large)
16
whopping(adjective, great, slang, big, substantial)
15
Brobdingnagian(adjective, big, huge, vast, immense)
14
unwieldy(adjective, solid, awkward, large, gravity)
13
monstrous(adjective, great, big, large, huge)
13
mountainous(adjective, great, big, large, grand)
13
stupendous(adjective, great, big, huge, lofty)
13
towering(adjective, great, large, grand, size)
12
solid(adjective, person, body, hard, deep)
11
humongous(adjective, great, big, large, huge)
11
impressive(adjective, powerful, large, grand, excessive)
10
ample(adjective, great, big, heavy, substantial)
10
cyclopean(adjective, big, giant)
10
hulking(adjective, large)
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APASmart Define. (2016). massive thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/massive/thesaurus/synonyms
ChicagoSmart Define. 2016. "massive thesaurus" https://smartdefine.org/massive/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, massive thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/massive/thesaurus/synonyms>.
MLASmart Define. "massive thesaurus" 26 February 2016. Web. 21 September 2026. <https://smartdefine.org/massive/thesaurus/synonyms>