- Definitions|0
- Thesaurus|72
- Abbreviations|0
12 entries under practical topic. ×
| intractable(adjective, sharp, difficult, shrewd) | |
| mulish(sharp, determined, shrewd, obstinate) | |
| obstinate(sharp, determined, shrewd, stubborn) | |
| pertinacious(sharp, determined, shrewd, obstinate) | |
| pigheaded(sharp, determined, shrewd, obstinate) | |
| resolute(sharp, determined, steady, fixed) | |
| unyielding(sharp, determined, steady, fixed) | |
| headstrong(sharp, shrewd, obstinate, stubborn) | |
| level-headed(adjective, tough, sharp, sensible, sober) | |
| perverse(sharp, shrewd, obstinate, stubborn) | |
| tough(sharp, shrewd, obstinate, stubborn) | |
| willful(sharp, shrewd, obstinate, stubborn) |
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| APA | Smart Define. (2011). tough nut thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tough_nut/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "tough nut thesaurus" https://smartdefine.org/tough_nut/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2011, tough nut thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tough_nut/thesaurus/synonyms>. |
| MLA | Smart Define. "tough nut thesaurus" 23 May 2011. Web. 24 September 2026. <https://smartdefine.org/tough_nut/thesaurus/synonyms> |