59 entries under great topic. ×

11
humongous(adjective, big, large, size)
11
substantial(adjective, big, important, significant)
9
roomy(adjective, space, large, huge)
8
whopping(adjective, slang, big, large)
7
bulky(adjective, strong, big, powerful)
7
grand(adjective, strong, big, powerful)
7
mountainous(adjective, big, large, huge)
7
sizable(adjective, open, big, large)
7
comprehensive(adjective, large, thick, huge)
6
grandiose(adjective, big, large, extravagant)
4
considerable(adjective, strong, big, powerful)
4
copious(adjective, big, large, huge)
3
generous(adjective, open, big, significant)
3
goodly(big, significant, large, huge)
3
hefty(big, significant, large, grand)
3
marvelous(amazing, greatness, astonishing, fabulous)
3
sweeping(adjective, spread, big, large)
3
terrific(adjective, amazing, astonishing, fabulous)
2
abundant(big, significant, large, huge)
2
gross(adjective, big, huge, monstrous)
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APASmart Define. (2015). vast thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/vast/thesaurus/synonyms
ChicagoSmart Define. 2015. "vast thesaurus" https://smartdefine.org/vast/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, vast thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/vast/thesaurus/synonyms>.
MLASmart Define. "vast thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/vast/thesaurus/synonyms>