- Definitions|2
- Thesaurus|860
- Abbreviations|0
78 entries under strong topic. ×
| indefatigable(adjective, continue, firm, difficult) | |
| unflagging(adjective, continue, firm, difficult) | |
| untiring(adjective, continue, energetic, lively) | |
| persevering(adjective, firm, difficult, energetic) | |
| persistent(adjective, firm, energetic, determined) | |
| resolute(adjective, set, firm, energetic) | |
| determined(adjective, keen, firm, energetic) | |
| industrious(adjective, work, strain, difficult) | |
| dogged(adjective, firm, energetic, determined) | |
| active(adjective, difficult, energetic, lively) | |
| unfailing(adjective, set, continue, firm) | |
| unfaltering(adjective, firm, energetic, determined) | |
| unwavering(adjective, set, firm, determined) | |
| staunch(adjective, firm, determined, steady) | |
| tenacious(adjective, firm, determined, steady) | |
| inexhaustible(adjective, continue, firm, energetic) | |
| steady(adjective, firm, determined, resolute) | |
| unswerving(adjective, set, firm, determined) | |
| unwearied(adjective, continue, firm, energetic) | |
| vigorous(adjective, energetic, lively, determined) |
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| APA | Smart Define. (2016). tireless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tireless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tireless thesaurus" https://smartdefine.org/tireless/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, tireless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tireless/thesaurus/synonyms>. |
| MLA | Smart Define. "tireless thesaurus" 19 February 2016. Web. 25 September 2026. <https://smartdefine.org/tireless/thesaurus/synonyms> |