- Definitions|2
- Thesaurus|5k
- Abbreviations|0
575 entries under adjective topic. ×
| sufficient(great, big, full, abundant) | |
| thickset(hard, solid, heavy, deep) | |
| unshakable(strong, hard, continue, solid) | |
| veritable(physical, material, real, actual) | |
| wide(hard, great, big, deep) | |
| authoritative(good, strong, sound, right) | |
| believable | |
| bounteous(give, great, big, rich) | |
| decent | |
| effective | |
| efficacious(good, strong, sound, right) | |
| existent(physical, material, real, positive) | |
| fair | |
| forceful(strong, sound, tough, solid) | |
| formidable | |
| gainful(productive, profitable) | |
| hale(strong, sound, complete, tough) | |
| high(hard, heavy, awkward, deep) | |
| impenetrable(close, set, strong, hard) | |
| impermeable(close, set, hard, tough) |
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| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms> |