- Definitions|2
- Thesaurus|2.1k
- Abbreviations|0
74 entries under demanding topic. ×
| serious(adjective, hard, tough, easy, difficult) | |
| grinding(adjective, hard, difficult, harsh, cruel) | |
| exhausting(adjective, dull, hard, tough, difficult) | |
| onerous(adjective, dull, hard, great, tough) | |
| intricate(adjective, hard, difficult, complex, awkward) | |
| involved(adjective, hard, difficult, complex, awkward) | |
| problematic(adjective, hard, tough, difficult, complex) | |
| sticky(adjective, hard, difficult, complex, awkward) | |
| toilful(adjective, hard, difficult, complex, awkward) | |
| fatiguing(adjective, dull, difficult, awkward, boring) | |
| grueling(adjective, hard, tough, severe, difficult) | |
| troublesome(adjective, hard, tough, difficulty, difficult) | |
| uphill(adjective, hard, great, tough, easy) | |
| tiring(adjective, dull, tough, difficult, awkward) | |
| formidable(adjective, tough, severe, difficulty, rough) | |
| heavy(adjective, dull, tough, severe, rough) | |
| exacting(adjective, dull, hard, tough, severe) | |
| wearying(adjective, dull, difficult, awkward, boring) | |
| rigorous(adjective, hard, tough, severe, rough) | |
| wearisome(adjective, dull, tough, severe, difficult) |
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| APA | Smart Define. (2016). arduous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/arduous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, arduous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/arduous/thesaurus/synonyms>. |
| MLA | Smart Define. "arduous thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/arduous/thesaurus/synonyms> |