575 entries under adjective topic. ×

5
adequate(great, reasonable, full, abundant)
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bountiful(give, great, big, rich)
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burly(strong, hard, fit, solid)
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capacious(great, big, generous, sufficient)
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close(set, strong, hard, tough)
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compact(close, set, strong, hard)
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cordial(enthusiastic, vigorous, sincere, wholehearted)
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corporal(physical, material, human, actual)
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effectual(complete, solid, vigorous, sturdy)
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fundamental
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gigantic(great, big, huge)
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husky(strong, hard, great, solid)
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immense(great, big, awkward, huge)
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liberal(great, big, generous, abundant)
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meaty
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persuasive(good, strong, sound, right)
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ponderable(material, tangible, materiality)
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pregnant(big, awkward, large, fat)
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profitable(good, useful, rewarding)
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staunch(calm, strong, sound, secure)
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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>