- Definitions|2
- Thesaurus|493
- Abbreviations|0
100 entries under strong topic. ×
| grind(adjective, firm, energetic, determined) | |
| hale(fit, healthy, well, robust) | |
| hardy(adjective, tough, fit, lively) | |
| high-powered(adjective, moving, lively, active) | |
| lusty(adjective, sound, tough, fit) | |
| muscular(fit, healthy, well, robust) | |
| potent(adjective, tough, fit, lively) | |
| powerful(adjective, sound, tough, fit) | |
| red-blooded(adjective, moving, lively, active) | |
| robust(fit, active, healthy, well) | |
| rugged(adjective, sound, tough, fit) | |
| snappy(adjective, tough, fit, lively) | |
| solid(fit, healthy, well, robust) | |
| spry(adjective, moving, lively, active) | |
| sturdy(adjective, sound, tough, fit) | |
| undeterred(adjective, firm, determined, steady) | |
| unstinted(adjective, firm, determined, steady) | |
| vivacious(adjective, moving, lively, active) | |
| able(fit, healthy, well, robust) | |
| able-bodied(fit, healthy, well, robust) |
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| APA | Smart Define. (2015). indefatigable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/indefatigable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indefatigable thesaurus" https://smartdefine.org/indefatigable/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, indefatigable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/indefatigable/thesaurus/synonyms>. |
| MLA | Smart Define. "indefatigable thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/indefatigable/thesaurus/synonyms> |