- Definitions|2
- Thesaurus|5k
- Abbreviations|0
135 entries under strong topic. ×
| stalwart(adjective, calm, sound, secure) | |
| telling(adjective, sound, reasonable, important) | |
| vigorous(adjective, sound, complete, tough) | |
| hardy(adjective, sound, tough, fit) | |
| rugged(adjective, sound, fit, solid) | |
| sure(adjective, calm, secure, continue) | |
| thick(adjective, close, set, hard) | |
| well-founded(adjective, calm, good, sound) | |
| burly(adjective, hard, fit, solid) | |
| close(adjective, set, hard, tough) | |
| compact(adjective, close, set, hard) | |
| husky(adjective, hard, great, solid) | |
| persuasive(adjective, good, sound, right) | |
| staunch(adjective, calm, sound, secure) | |
| unshakable(adjective, hard, continue, solid) | |
| authoritative(adjective, good, sound, right) | |
| efficacious(adjective, good, sound, right) | |
| forceful(adjective, sound, tough, solid) | |
| hale(adjective, sound, complete, tough) | |
| impenetrable(adjective, close, set, hard) |
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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> |