- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
106 entries under tough topic. ×
| unshakable(adjective, mean, strong, hard, secure) | |
| hard-nosed(adjective, mean, strong, hard, secure) | |
| intractable(adjective, hard, firm, determined) | |
| mulish(adjective, mean, strong, hard) | |
| pigheaded(adjective, mean, hard, deliberate) | |
| flinty(adjective, strong, hard, firm) | |
| grim(adjective, mean, strong, hard) | |
| headstrong(adjective, firm, determined, resolute) | |
| pertinacious(adjective, determined, resolute, obstinate) | |
| perverse(adjective, mean, hard, deliberate) | |
| steely(adjective, strong, hard, resolute) | |
| refractory(adjective, firm, determined, unreasonable) | |
| severe(adjective, mean, strong, hard) | |
| persistent(adjective, strong, flat, firm) | |
| rigorous(adjective, strong, hard, harsh) | |
| stiff-necked(adjective, mean, strong, hard) | |
| strict(adjective, strong, hard, flat) | |
| harsh(adjective, mean, strong, hard) | |
| opinionated(adjective, firm, determined, resolute) | |
| recalcitrant(adjective, firm, unreasonable, grim) |
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| APA | Smart Define. (2016). adamant thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/adamant/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "adamant thesaurus" https://smartdefine.org/adamant/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, adamant thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/adamant/thesaurus/synonyms>. |
| MLA | Smart Define. "adamant thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/adamant/thesaurus/synonyms> |