- Definitions|2
- Thesaurus|2k
- Abbreviations|0
139 entries under tough topic. ×
| flinty(adjective, close, strong, hard) | |
| hard-hearted(adjective, mean, hard, evil) | |
| uncompassionate(adjective, animal, mean, hard) | |
| unfeeling(adjective, animal, mean, hard) | |
| unsparing(adjective, mean, strong, hard) | |
| fierce(adjective, animal, mean, hard) | |
| forbidding(adjective, close, appearance, strong, hard) | |
| inclement(adjective, harsh, cruel, grim) | |
| robust(adjective, strong, hard, sturdy) | |
| single-minded(adjective, firm, harsh, cruel) | |
| astringent(adjective, strong, hard, severe) | |
| authoritarian(adjective, strong, hard, severe) | |
| bleak(adjective, appearance, hard, severe) | |
| cold(adjective, close, mean, strong, hard) | |
| hard-core(adjective, strong, hard, severe) | |
| indomitable(adjective, set, strong, hard) | |
| inhumane(adjective, animal, mean, hard) | |
| insensitive(adjective, hard, harsh, cruel) | |
| sour(adjective, hard, severe, sharp) | |
| stringent(adjective, severe, harsh, solid) |
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| APA | Smart Define. (2015). unrelenting thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unrelenting/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unrelenting thesaurus" https://smartdefine.org/unrelenting/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, unrelenting thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unrelenting/thesaurus/synonyms>. |
| MLA | Smart Define. "unrelenting thesaurus" 3 August 2015. Web. 30 September 2026. <https://smartdefine.org/unrelenting/thesaurus/synonyms> |