- Definitions|2
- Thesaurus|5k
- Abbreviations|0
133 entries under big topic. ×
| stout(adjective, calm, strong, sound, secure) | |
| significant(adjective, strong, importance, heavy) | |
| considerable(adjective, great, reasonable, fair, importance) | |
| material(noun, adjective, body, hard, solid) | |
| abundant(adjective, give, great, strain) | |
| ample(adjective, give, great, reasonable, fair) | |
| large(adjective, great, fair, important) | |
| weighty(adjective, good, strong, sound, right) | |
| consequential(adjective, importance, heavy, important) | |
| important(adjective, strong, importance, heavy) | |
| essential(adjective, physical, importance, material) | |
| serious(adjective, importance, heavy, important) | |
| momentous(adjective, strong, importance, heavy) | |
| generous(adjective, good, give, great, fair) | |
| good(adjective, great, sound, right, reasonable) | |
| meaningful(adjective, strong, importance, heavy) | |
| massive(adjective, hard, great, heavy) | |
| goodly(adjective, great, reasonable, important) | |
| hefty(adjective, strong, hard, great, tough) | |
| sizable(adjective, great, reasonable, fair) |
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| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms> |