- Definitions|1
- Thesaurus|474
- Abbreviations|0
74 entries under tough topic. ×
| iron(adjective, mean, hard, firm) | |
| mule(firm, unreasonable, grim, impulsive) | |
| ornery(firm, unreasonable, grim, inflexible) | |
| tough-nut(adjective, hard, difficult, wild) | |
| unreasonable(firm, grim, inflexible, obstinate) | |
| unshakable(adjective, mean, hard, firm) | |
| untoward(firm, unreasonable, grim, inflexible) | |
| awkward(difficult, obstinate, stubborn, willful) | |
| incurable(difficult, awkward, obstinate, stubborn) | |
| indocile(difficult, awkward, obstinate, stubborn) | |
| insoluble(difficult, awkward, obstinate, stubborn) | |
| levelheaded(adjective, hard, shrewd, stubborn) | |
| shrewd(adjective, hard, sharp, practical) | |
| undisciplined(difficult, awkward, obstinate, stubborn) |
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| APA | Smart Define. (2015). pigheaded thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/pigheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pigheaded thesaurus" https://smartdefine.org/pigheaded/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, pigheaded thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/pigheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "pigheaded thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/pigheaded/thesaurus/synonyms> |