- Definitions|2
- Thesaurus|5k
- Abbreviations|0
108 entries under heavy topic. ×
| strong(adjective, calm, good, strong, hard) | |
| firm(noun, adjective, calm, close, strong) | |
| sound(noun, adjective, calm, strong, hard) | |
| stable(adjective, strong, hard, sound, complete) | |
| solid(adjective, calm, good, close, strong) | |
| stout(adjective, calm, strong, sound, secure) | |
| significant(adjective, strong, importance, big) | |
| considerable(adjective, great, reasonable, fair, importance) | |
| big(adjective, strong, great, sound, tough) | |
| durable(adjective, calm, strong, sound, secure) | |
| material(noun, adjective, body, hard, solid) | |
| steady(adjective, calm, strong, sound, secure) | |
| weighty(adjective, good, strong, sound, right) | |
| robust(adjective, strong, sound, complete, tough) | |
| consequential(adjective, importance, big, important) | |
| sturdy(adjective, calm, strong, hard, sound) | |
| enduring(adjective, calm, strong, sound, secure) | |
| important(adjective, strong, importance, big) | |
| serious(adjective, importance, big, important) | |
| unyielding(adjective, strong, hard, sound, tough) |
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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> |