76 entries under great topic. ×

8
enormous(adjective, big, awkward, huge)
8
major(adjective, good, reasonable, fair)
7
copious(adjective, give, big, full)
7
extensive(adjective, big, significant, large)
6
full(adjective, big, heavy, enthusiastic)
5
adequate(adjective, reasonable, full, abundant)
5
bountiful(adjective, give, big, rich)
5
capacious(adjective, big, generous, sufficient)
5
gigantic(adjective, big, huge)
5
husky(adjective, strong, hard, solid)
5
immense(adjective, big, awkward, huge)
5
liberal(adjective, big, generous, abundant)
5
sufficient(adjective, big, full, abundant)
5
wide(adjective, hard, big, deep)
4
bounteous(adjective, give, big, rich)
4
monumental(adjective, big, important, huge)
4
plenteous(adjective, give, big, heavy)
3
broad(adjective, hard, big, deep)
3
colossal(adjective, big, awkward, large)
3
galore(adjective, heavy, full, large)
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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>