- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
97 entries under cruel topic. ×
| oppressive(adjective, hard, tough, severe, rough) | |
| arduous(adjective, hard, tough, severe, rough) | |
| inclement(adjective, hard, tough, severe, rough) | |
| relentless(adjective, strong, hard, tough, severe) | |
| rugged(adjective, strong, hard, tough, severe) | |
| unbending(adjective, strong, hard, tough, severe) | |
| brutal(adjective, hard, tough, severe, rough) | |
| dour(adjective, tough, severe, firm, harsh) | |
| firm(noun, adjective, strong, hard, complete) | |
| grim(adjective, strong, hard, tough, severe) | |
| inexorable(adjective, strong, hard, tough, severe) | |
| adamant(adjective, strong, hard, tough, harsh) | |
| astringent(adjective, strong, hard, tough, severe) | |
| unrelenting(adjective, strong, hard, tough, severe) | |
| extreme(adjective, severe, harsh, brutal) | |
| undeviating(adjective, severe, harsh, solid, exact) | |
| unsparing(adjective, strong, hard, tough, severe) | |
| bleak(adjective, tough, severe, harsh) | |
| determined(adjective, severe, harsh, solid, intense) | |
| flinty(adjective, strong, hard, tough, severe) |
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| APA | Smart Define. (2016). rigorous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/rigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, rigorous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/rigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "rigorous thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/rigorous/thesaurus/synonyms> |