- Definitions|2
- Thesaurus|493
- Abbreviations|0
255 entries under adjective topic. ×
| devoted(strong, firm, determined, steady) | |
| enduring(set, strong, fit, healthy) | |
| faithful(resolute, tenacious) | |
| insistent(resolute, tenacious) | |
| laborious | |
| stalwart(strong, sound, tough, fit) | |
| undaunted | |
| undeviating | |
| zealous | |
| active(strong, moving, difficult, energetic) | |
| dedicated(strong, firm, determined, steady) | |
| dynamic(strong, moving, lively, active) | |
| earnest | |
| hardworking | |
| obstinate | |
| perseverant | |
| strong(sound, tough, fit, firm) | |
| thorough | |
| unceasing(strong, firm, determined, steady) | |
| unyielding |
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| APA | Smart Define. (2015). indefatigable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/indefatigable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indefatigable thesaurus" https://smartdefine.org/indefatigable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, indefatigable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indefatigable/thesaurus/synonyms>. |
| MLA | Smart Define. "indefatigable thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/indefatigable/thesaurus/synonyms> |