164 entries under substantial topic. ×
| fat(adjective, great, solid, heavy, important) | |
| consequential(adjective, good, importance, heavy, important) | |
| hefty(adjective, person, body, strong, great) | |
| meaningful(adjective, good, importance, heavy, important) | |
| serious(adjective, good, importance, heavy, important) | |
| elephantine(adjective, heavy, awkward, round) | |
| sizeable(adjective, significant, large) | |
| whopping(adjective, great, large, generous) | |
| copious(adjective, great, heavy, awkward) | |
| sizable(adjective, open, great, high) | |
| stout(adjective, person, body, strong, sound) | |
| bountiful(adjective, good, kind, reasonable, easy) | |
| goodly(adjective, great, significant, large) | |
| abundant(adjective, quality, great, heavy, awkward) | |
| essential(adjective, importance, important, significant) | |
| obese(adjective, solid, heavy, round) | |
| pregnant(adjective, reproduction, animal, heavy, awkward) | |
| strapping(adjective, person, body, strong, great) | |
| gross(adjective, great, heavy, awkward) | |
| ponderous(adjective, great, heavy, significant) |
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| APA | Smart Define. (2016). big thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/big/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "big thesaurus" https://smartdefine.org/big/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, big thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/big/thesaurus/synonyms>. |
| MLA | Smart Define. "big thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/big/thesaurus/synonyms> |