11 entries under adjective topic. ×
| annealed | |
| baked | |
| burnt | |
| burned | |
| curable | |
| gargantuan | |
| hard | |
| stubborn(characteristic, quality, refusal, stubbornness) | |
| sunbaked | |
| tough | |
| toughened |
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| APA | Smart Define. (2016). hardened thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hardened/thesaurus/related |
| Chicago | Smart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/related (accessed September 27, 2026). |
| Harvard | Smart Define 2016, hardened thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hardened/thesaurus/related>. |
| MLA | Smart Define. "hardened thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/hardened/thesaurus/related> |