- Definitions|2
- Thesaurus|697
- Abbreviations|0
60 entries under tough topic. ×
| firm(noun, adjective, mean, strong, hard) | |
| stubborn(adjective, characteristic, quality, mean, strong) | |
| inflexible(adjective, mean, strong, hard, secure) | |
| determined(adjective, strong, resolute, obstinate) | |
| inexorable(adjective, mean, hard, determined) | |
| unyielding(adjective, mean, strong, hard, secure) | |
| unbending(adjective, mean, strong, hard) | |
| relentless(adjective, mean, strong, hard) | |
| set(adjective, strong, hard, secure) | |
| unrelenting(adjective, mean, hard, certain) | |
| obstinate(adjective, mean, strong, hard) | |
| adamant(adjective, mean, strong, hard, secure) | |
| persistent(adjective, strong, firm, determined) | |
| tenacious(adjective, strong, firm, determined) | |
| dogged(adjective, mean, strong, hard) | |
| pertinacious(adjective, firm, determined, resolute) | |
| solid(adjective, strong, hard, secure) | |
| strong(adjective, strong, hard, secure) | |
| mulish(adjective, mean, strong, hard) | |
| sturdy(adjective, strong, hard, continue) |
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| APA | Smart Define. (2015). unshakable thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unshakable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unshakable thesaurus" https://smartdefine.org/unshakable/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, unshakable thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unshakable/thesaurus/synonyms>. |
| MLA | Smart Define. "unshakable thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unshakable/thesaurus/synonyms> |