147 entries under big topic. ×

3
monumental(adjective, great, huge, immense)
3
billowing(adjective, vast)
3
bounteous(adjective, give, great, substantial)
3
goodly(great, substantial, generous, huge)
3
grand(adjective, great, large, huge)
3
legion(adjective, vast, numerous)
3
long(adjective, awkward, large, grand)
3
many(adjective, vast)
3
multifarious(adjective, vast)
3
multitudinous(adjective, vast, considerable, many)
3
populous(adjective, mixed, great, huge)
3
several(adjective, vast)
3
sundry(adjective, vast)
3
various(adjective, vast)
2
covering(adjective, large, huge, vast)
2
extended(open, large, grand, comfortable)
2
far-reaching(spread, large, grand, thick)
2
fat(great, huge)
2
gross(great, awkward, substantial, generous)
2
heavy(adjective, give, rich)
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APASmart Define. (2015). voluminous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/voluminous/thesaurus/synonyms
ChicagoSmart Define. 2015. "voluminous thesaurus" https://smartdefine.org/voluminous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, voluminous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/voluminous/thesaurus/synonyms>.
MLASmart Define. "voluminous thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/voluminous/thesaurus/synonyms>