- Definitions|2
- Thesaurus|505
- Abbreviations|0
| staunch | |
| steady | |
| steely(adjective, strong, hard, tough, severe) | |
| stony | |
| strong(adjective, hard, tough, firm, determined) | |
| strongheaded | |
| sturdy(adjective, strong, hard, tough, firm) | |
| sulky | |
| swinish | |
| thick-skinned(adjective, mean, hard, harsh, inflexible) | |
| tough-nut(adjective, hard, tough, difficult, wild) | |
| tough nut(expression, sharp, determined, practical, shrewd) | |
| tough nut to crack(expression, adjective, idiom, mean, hard) | |
| unadaptable | |
| unappeasable(adjective, determined, resolute, uncompromising, unshakeable) | |
| uncompassionate(adjective, mean, hard, harsh, inflexible) | |
| uncompliant(adjective, stubborn) | |
| uncontrollable(determined, impulsive, stubborn, reckless, impetuous) | |
| undisciplined(tough, difficult, awkward, obstinate, stubborn) | |
| unflagging |
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| APA | Smart Define. (2015). mulish thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/mulish/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mulish thesaurus" https://smartdefine.org/mulish/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, mulish thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/mulish/thesaurus/synonyms>. |
| MLA | Smart Define. "mulish thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/mulish/thesaurus/synonyms> |