- Definitions|2
- Thesaurus|1.4k
- Abbreviations|0
| plucky(adjective, resolute) | |
| resolute(adjective, appearance, strong, firm, terrible) | |
| resolved(adjective, resolute) | |
| revengeful(adjective, mean, evil, nasty, harsh) | |
| rigid(adjective, severe, harsh, cruel, determined) | |
| rigorous(adjective, hard, tough, harsh, unpleasant) | |
| satanic(adjective, mean, hard, harsh, cold) | |
| soulless(adjective, mean, hard, harsh, cold) | |
| spunky(adjective, resolute) | |
| staunch(adjective, resolute) | |
| steadfast(adjective, resolute) | |
| strong-minded(adjective, resolute) | |
| strong-willed(adjective, resolute) | |
| surly(adjective, mean, hard, tough, severe) | |
| tenacious(adjective, resolute) | |
| thick-skinned(adjective, hard, tough, severe, cruel) | |
| thorough(adjective, resolute) | |
| tireless(adjective, resolute) | |
| unchangeable(adjective, resolute) | |
| uncharitable(adjective, terrible behavior) |
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| APA | Smart Define. (2016). ruthless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ruthless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ruthless thesaurus" https://smartdefine.org/ruthless/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, ruthless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ruthless/thesaurus/synonyms>. |
| MLA | Smart Define. "ruthless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/ruthless/thesaurus/synonyms> |