- Definitions|2
- Thesaurus|675
- Abbreviations|0
63 entries under determined topic. ×
| intransigent(adjective, resist, resolute, obstinate) | |
| inexorable(adjective, strong, hard, tough, resist) | |
| inflexible(adjective, strong, hard, tough, firm) | |
| unrelenting(adjective, strong, hard, tough, resist) | |
| adamant(adjective, strong, hard, tough, firm) | |
| stubborn(adjective, characteristic, quality, strong, hard) | |
| unyielding(adjective, strong, hard, tough, firm) | |
| obdurate(adjective, strong, hard, tough, resist) | |
| rigid(adjective, strong, hard, tough, severe) | |
| uncompromising(adjective, tough, resist, resolute) | |
| unbending(adjective, strong, hard, tough, resist) | |
| relentless(adjective, strong, hard, tough, resist) | |
| hard(adjective, strong, strength, tough, firm) | |
| firm(adjective, strong, hard, tough) | |
| immovable(adjective, strong, hard, tough, cruel) | |
| implacable(adjective, strong, hard, tough, resist) | |
| grim(adjective, strong, hard, tough, resist) | |
| resolute(adjective, hard, rigid, strict) | |
| steely(adjective, strong, hard, tough, firm) | |
| stern(adjective, resolute, uncompromising, unshakeable) |
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| APA | Smart Define. (2015). adamantine thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/adamantine/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "adamantine thesaurus" https://smartdefine.org/adamantine/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, adamantine thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/adamantine/thesaurus/synonyms>. |
| MLA | Smart Define. "adamantine thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/adamantine/thesaurus/synonyms> |