- Definitions|2
- Thesaurus|5k
- Abbreviations|0
133 entries under big topic. ×
| immense(adjective, great, awkward, huge) | |
| liberal(adjective, great, generous, abundant) | |
| pregnant(adjective, awkward, large, fat) | |
| sufficient(adjective, great, full, abundant) | |
| wide(adjective, hard, great, deep) | |
| bounteous(adjective, give, great, rich) | |
| large-scale(adjective, significant, large, sturdy) | |
| monumental(adjective, great, important, huge) | |
| plenteous(adjective, give, great, heavy) | |
| sober(adjective, firm, solid, heavy) | |
| broad(adjective, hard, great, deep) | |
| colossal(adjective, great, awkward, large) | |
| crucial(adjective, heavy, important, significant) | |
| definite(adjective, certain, significant, real) | |
| heavyweight(adjective, heavy, important, significant) | |
| jumbo(great, generous, huge, good-sized) | |
| plenitudinous(adjective, give, rich, generous) | |
| ponderous(adjective, heavy, awkward, large) | |
| spacious(adjective, great, generous, huge) | |
| critical(adjective, heavy, important, significant) |
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| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms> |