- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
118 entries under solid topic. ×
| ardent(adjective, close, correct, warm, firm) | |
| athletic(adjective, strong, sound, tough, fit) | |
| balanced(adjective, calm, strong, secure, firm) | |
| big(adjective, strong, sound, tough) | |
| brick-wall(adjective, calm, strong, secure, firm) | |
| calm(adjective, quiet, strong, cool, secure) | |
| capable(adjective, calm, quiet, strong, sound) | |
| certain(adjective, set, clear, complete, firm) | |
| cool(noun, adjective, calm, quiet, strength) | |
| dead set on(expression, idiom, strong, firm) | |
| dedicated(adjective, complete, warm, firm, total) | |
| energetic(adjective, strong, sound, tough) | |
| equable(adjective, calm, strong, secure, firm) | |
| even(adjective, calm, strong, secure, firm) | |
| fixed resistant(expression, calm, strong, substantial) | |
| forceful(adjective, strong, sound, tough) | |
| forcible(adjective, strong, sound, tough) | |
| hale(adjective, strong, sound, tough, fit) | |
| hard as nails(expression, adjective, idiom, strong, sound) | |
| healthy(adjective, strong, sound, tough, fit) |
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| APA | Smart Define. (2016). enduring thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, enduring thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>. |
| MLA | Smart Define. "enduring thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms> |