- Definitions|2
- Thesaurus|330
- Abbreviations|0
151 entries under adjective topic. ×
| rigorous(strong, hard, tough, severe) | |
| rough(strong, hard, tough, severe) | |
| severe(strong, hard, tough, harsh) | |
| stiff | |
| stony | |
| strict(strong, hard, tough, severe) | |
| tough-nut(hard, tough, difficult, wild) | |
| unappeasable(determined, resolute, uncompromising, unshakeable) | |
| unchangeable | |
| undaunted | |
| unflinching | |
| unforgiving(determined, resolute, uncompromising, unshakeable) | |
| unshakeable | |
| unsparing(strong, hard, tough, severe) | |
| valiant | |
| zealous | |
| cruel(strong, hard, tough, severe) | |
| dense(strong, hard, tough, stupid) | |
| ferric(strong, hard, tough, sturdy) | |
| ferrous(strong, hard, tough, sturdy) |
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| APA | Smart Define. (2015). bullheaded thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/bullheaded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "bullheaded thesaurus" https://smartdefine.org/bullheaded/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, bullheaded thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/bullheaded/thesaurus/synonyms>. |
| MLA | Smart Define. "bullheaded thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/bullheaded/thesaurus/synonyms> |