- Definitions|1
- Thesaurus|474
- Abbreviations|0
42 entries under hard topic. ×
| implacable(adjective, mean, tough, firm) | |
| set in stone(expression, adjective, idiom, mean) | |
| tough(adjective, mean, firm, difficult) | |
| astute(adjective, tough, sharp, practical) | |
| bullhead(adjective, mean, harsh, inflexible) | |
| hanging tough(expression, adjective, mean, determined) | |
| hard-boiled(adjective, mean, tough, sharp) | |
| hard-hearted(adjective, mean, harsh, inflexible) | |
| indurate(adjective, mean, harsh, inflexible) | |
| iron(adjective, mean, tough, firm) | |
| mean(adjective, harsh, awkward, inflexible) | |
| tough-nut(adjective, tough, difficult, wild) | |
| tough nut to crack(expression, adjective, idiom, mean) | |
| unimpressible(adjective, mean, harsh, inflexible) | |
| unshakable(adjective, mean, tough, firm) | |
| cold fish(expression, adjective, mean, harsh) | |
| harsh(adjective, mean, inflexible, obstinate) | |
| levelheaded(adjective, tough, shrewd, stubborn) | |
| shrewd(adjective, tough, sharp, practical) | |
| thick-skinned(adjective, mean, harsh, inflexible) |
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| APA | Smart Define. (2015). pigheaded thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/pigheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pigheaded thesaurus" https://smartdefine.org/pigheaded/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, pigheaded thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/pigheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "pigheaded thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/pigheaded/thesaurus/synonyms> |