118 entries under large topic. ×

4
plenteous(adjective, give, great, big, heavy)
3
colossal(adjective, great, big, awkward)
3
galore(adjective, great, heavy, full)
3
heavy-duty(adjective, strong, great, sound, tough)
3
heavyweight(adjective, big, heavy, important, significant)
3
lavish(adjective, great, significant, generous)
3
major-league(adjective, strong, important, powerful, significant)
3
much(adjective, significant, plenty)
3
noticeable(adjective, significant, considerable, palpable)
3
ponderous(adjective, big, heavy, awkward)
3
princely(adjective, generous, plentiful)
3
reasonable(adjective, sound, fair, significant, rational)
3
strapping(adjective, strong, great, sound, tough)
2
brawny(adjective, strong, fit, determined, healthy)
2
crowded(adjective, close, strong, great, solid)
2
cumbersome(adjective, big, heavy, awkward)
2
fat(adjective, hard, great, big, heavy)
2
gross(great, physical, material, big, awkward)
2
noteworthy(adjective, big, important, significant)
2
packed(adjective, close, strong, great, solid)
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APASmart Define. (2016). substantial thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, substantial thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>.
MLASmart Define. "substantial thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms>