- Definitions|2
- Thesaurus|493
- Abbreviations|0
| unyielding(adjective, resolute) | |
| abiding(adjective, persevering) | |
| continuing(adjective, strong, firm, determined, steady) | |
| continuous(adjective, continuous) | |
| courageous(adjective, resolute, tenacious) | |
| dauntless(adjective, resolute, tenacious) | |
| hard(adjective, tenacious) | |
| hard-working(adjective, activity) | |
| intent(adjective, activity, resolute) | |
| lasting(adjective, continuous, persevering) | |
| persisting | |
| single-minded | |
| spirited(adjective, strong, moving, lively, active) | |
| true(adjective, resolute, tenacious) | |
| unchangeable(adjective, resolute, continuous, perseverance) | |
| unrelenting | |
| bulldogged(adjective, tenacious) | |
| bullheaded(adjective, resolute, tenacious) | |
| conscientious | |
| eager |
For more, visit
Indefatigable on
Power Thesaurus
| APA | Smart Define. (2015). indefatigable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/indefatigable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indefatigable thesaurus" https://smartdefine.org/indefatigable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, indefatigable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/indefatigable/thesaurus/synonyms>. |
| MLA | Smart Define. "indefatigable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/indefatigable/thesaurus/synonyms> |