- Definitions|2
- Thesaurus|1.4k
- Abbreviations|0
29 entries under arduous topic. ×
| labored(adjective, hard, great, tough, difficult) | |
| stiff(adjective, tough, severe, difficult, painful) | |
| Herculean(adjective, tough, severe, difficult, awkward) | |
| challenging(adjective, great, tough, severe, difficult) | |
| hairy(adjective, hard, tough, severe, rough) | |
| irksome(adjective, hard, severe, difficulty, rough) | |
| mean(adjective, hard, rough, difficult, heavy) | |
| galling(tough, severe, harsh, heavy, painful) | |
| testing(adjective, tough, difficult, awkward, grim) |
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| APA | Smart Define. (2015). toilsome thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toilsome/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toilsome thesaurus" https://smartdefine.org/toilsome/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, toilsome thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toilsome/thesaurus/synonyms>. |
| MLA | Smart Define. "toilsome thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/toilsome/thesaurus/synonyms> |