- Definitions|1
- Thesaurus|474
- Abbreviations|0
129 entries under stubborn topic. ×
| hard-line(tough, firm, difficult, determined, awkward) | |
| immutable(adjective, obstinate, unbending) | |
| indomitable(tough, difficult, determined, awkward, fixed) | |
| indurate(adjective, mean, hard, harsh, inflexible) | |
| insubordinate(tough, firm, unreasonable, grim, inflexible) | |
| iron(adjective, mean, hard, tough, firm) | |
| mean(adjective, hard, harsh, awkward, inflexible) | |
| mule(tough, firm, unreasonable, grim, impulsive) | |
| ornery(tough, firm, unreasonable, grim, inflexible) | |
| rigorous(adjective, obstinate, unbending) | |
| staunch(firm, determined, resolute, obstinate) | |
| steely(adjective, obstinate, unbending) | |
| strong-minded(determined, fixed, impulsive, reckless) | |
| stupid(adjective, informal) | |
| tough-nut(adjective, hard, tough, difficult, wild) | |
| tough nut to crack(expression, adjective, idiom, mean, hard) | |
| unimpressible(adjective, mean, hard, harsh, inflexible) | |
| unreasonable(tough, firm, grim, inflexible, obstinate) | |
| unshakable(adjective, mean, hard, tough, firm) | |
| untoward(tough, firm, unreasonable, grim, inflexible) |
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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> |