- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
211 entries under severe topic. ×
| compassionless(adjective, mean, hard, harsh) | |
| cool | |
| correct | |
| crisp | |
| critical | |
| curt | |
| cutting | |
| disciplinary(adjective, strong, hard, tough) | |
| disciplined | |
| dry | |
| dyed-in-the-wool(adjective, set, strong, hard, tough) | |
| feral(adjective, mean, strong, harsh) | |
| frosty | |
| frowning(adjective, strong, hard, tough) | |
| fundamental | |
| gratuitous(adjective, mean, harsh, cruel) | |
| hang-tough(adjective, strong, hard, tough) | |
| hard-boiled(adjective, mean, strong, hard, tough) | |
| hatchet job(expression, adjective, mean, harsh) | |
| having a killer instinct(expression, adjective, idiom, mean) |
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| APA | Smart Define. (2015). relentless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/relentless/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "relentless thesaurus" https://smartdefine.org/relentless/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, relentless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/relentless/thesaurus/synonyms>. |
| MLA | Smart Define. "relentless thesaurus" 24 June 2015. Web. 25 September 2026. <https://smartdefine.org/relentless/thesaurus/synonyms> |