- Definitions|2
- Thesaurus|697
- Abbreviations|0
| positive(adjective, clear, certain, definite, established) | |
| refractory(adjective, tough, firm, unreasonable, grim) | |
| settled(strong, secure, firm, substantial, stable) | |
| single-minded(adjective, tough, firm, solid, determined) | |
| stalwart | |
| stout | |
| tight(adjective, strong, hard, secure, tough) | |
| tireless | |
| true | |
| undaunted(adjective, firm, determined, bold, resolute) | |
| unflagging | |
| unhesitating(adjective, complete, firm, certain, obedient) | |
| untiring | |
| absolute | |
| accurate(complete, firm, certain, established, obedient) | |
| ambitious | |
| assiduous | |
| balanced | |
| ballsy(bold, confident, fearless) | |
| beyond dispute |
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| APA | Smart Define. (2015). unshakable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unshakable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unshakable thesaurus" https://smartdefine.org/unshakable/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, unshakable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unshakable/thesaurus/synonyms>. |
| MLA | Smart Define. "unshakable thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/unshakable/thesaurus/synonyms> |