- Definitions|1
- Thesaurus|312
- Abbreviations|0
51 entries under difficulty topic. ×
| quagmire(laboriousness, strenuousness) | |
| quandary(laboriousness, strenuousness) | |
| scrape(laboriousness, strenuousness) | |
| snag(laboriousness, strenuousness) | |
| stew(laboriousness, strenuousness) | |
| strain(laboriousness, strenuousness) | |
| strait(laboriousness, strenuousness) | |
| strenuousness | |
| stumbling block(expression, laboriousness, strenuousness) | |
| tribulation(laboriousness, strenuousness) | |
| trouble(laboriousness, strenuousness) |
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| APA | Smart Define. (2015). rigorousness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rigorousness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigorousness thesaurus" https://smartdefine.org/rigorousness/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, rigorousness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigorousness/thesaurus/synonyms>. |
| MLA | Smart Define. "rigorousness thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/rigorousness/thesaurus/synonyms> |