- Definitions|1
- Thesaurus|1.6k
- Abbreviations|0
89 entries under tough topic. ×
| opinionated(adjective, firm, determined, resolute) | |
| adamant(adjective, strong, hard, determined) | |
| inexorable(adjective, strong, hard, determined) | |
| relentless(adjective, strong, hard, cold) | |
| unbending(adjective, strong, hard, determined) | |
| immovable(adjective, strong, hard, determined) | |
| intractable(adjective, strong, firm, cold) | |
| perverse(adjective, firm, resist, determined) | |
| balky(firm, unreasonable, grim, inflexible) | |
| determined(adjective, firm, resolute, obstinate) | |
| hard-boiled(adjective, strong, hard, sound) | |
| firm(adjective, strong, hard, determined) | |
| grim(adjective, strong, hard, determined) | |
| implacable(adjective, strong, hard, firm) | |
| fixed(firm, determined, resolute, obstinate) | |
| harsh(adjective, strong, hard, severe) | |
| persevering(firm, determined, unreasonable, grim) | |
| severe(adjective, strong, hard, harsh) | |
| steadfast(firm, determined, resolute, obstinate) | |
| unshakable(firm, determined, resolute, obstinate) |
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| APA | Smart Define. (2015). hardheaded thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, hardheaded thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "hardheaded thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms> |