- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
146 entries under strict topic. ×
| unyielding(adjective, strong, hard, tough, severe) | |
| particular(noun, adjective, correct, fine, solid) | |
| unerring(adjective, correct, solid, perfect, exact) | |
| difficult(adjective, hard, severe, rough, harsh) | |
| faithful(noun, adjective, correct, right, appropriate) | |
| punctual(adjective, correct, solid, exact, proper) | |
| right(noun, adjective, hard, complete, correct) | |
| explicit(noun, adjective, correct, solid, perfect) | |
| just(adjective, correct, right, appropriate, solid) | |
| tough(adjective, strong, hard, severe, rough) | |
| obdurate(adjective, strong, hard, tough, severe) | |
| sharp(noun, adjective, correct, severe, harsh) | |
| tight(adjective, severe, careful, rigid) | |
| bitter(adjective, strong, hard, tough, severe) | |
| oppressive(adjective, hard, tough, severe, rough) | |
| painstaking(adjective, harsh, rigid, honorable, reliable) | |
| pinpoint(adjective, exact, scrupulous, detailed) | |
| arduous(adjective, hard, tough, severe, rough) | |
| inclement(adjective, hard, tough, severe, rough) | |
| neat(adjective, exact, scrupulous, detailed) |
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| APA | Smart Define. (2016). rigorous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, rigorous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "rigorous thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/rigorous/thesaurus/synonyms> |