- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
82 entries under stern topic. ×
| bleak(adjective, tough, severe, harsh, cruel) | |
| flinty(adjective, strong, hard, tough, severe) | |
| intemperate(adjective, hard, tough, severe, rough) | |
| prudish(adjective, tough, severe, firm, harsh) | |
| strait-laced(adjective, tough, severe, firm, harsh) | |
| strenuous(adjective, hard, tough, severe, rough) | |
| authoritarian(adjective, strong, hard, tough, severe) | |
| drastic(adjective, severe, harsh, cruel, brutal) | |
| effortful(adjective, tough, rough, difficult, harsh) | |
| fierce(adjective, hard, tough, harsh, intense) | |
| heavy(adjective, strong, hard, tough, severe) | |
| implacable(adjective, strong, hard, tough, harsh) | |
| pitiless(adjective, hard, tough, severe, harsh) | |
| ruthless(adjective, hard, tough, harsh, unpleasant) | |
| toilsome(adjective, hard, tough, severe, rough) | |
| tyrannical(adjective, hard, tough, harsh, cruel) | |
| cold(adjective, tough, severe, harsh, cruel) | |
| grinding(adjective, tough, severe, rough, difficult) | |
| hard-nosed(adjective, strong, hard, tough, severe) | |
| picky(adjective, tough, severe, fine, firm) |
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| APA | Smart Define. (2016). rigorous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, rigorous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "rigorous thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/rigorous/thesaurus/synonyms> |