176 entries under substantial topic. ×

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overweight(big, heavy)
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porcine(big, heavy)
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portly(big, heavy)
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pronounced(significant, definite, considerable)
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reasonable(significant, large)
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secure(adjective, strong, hard, sturdy)
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sedate(big, heavy)
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severe(big, heavy)
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sober(big, heavy)
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somber(big, heavy)
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staid(big, heavy)
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stout(big, heavy, significant, large)
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thick(adjective, strong, hard, compact)
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tight(adjective, strong, hard, compact)
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tolerable(significant, large)
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underlined(big, heavy)
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APASmart Define. (2016). material thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/material/thesaurus/synonyms
ChicagoSmart Define. 2016. "material thesaurus" https://smartdefine.org/material/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, material thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/material/thesaurus/synonyms>.
MLASmart Define. "material thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/material/thesaurus/synonyms>