- Definitions|1
- Thesaurus|302
- Abbreviations|0
21 entries under strenuous topic. ×
| difficult(adjective, hard, great, tough, rough) | |
| laborious(adjective, hard, great, tough, rough) | |
| arduous(adjective, hard, great, tough, rough) | |
| heavy(adjective, tough, severe, difficult, harsh) | |
| labored(adjective, hard, great, tough, rough) | |
| onerous(adjective, great, tough, rough, difficult) | |
| backbreaking(adjective, hard, severe, rough, difficult) | |
| burdensome(adjective, tough, severe, rough, difficult) | |
| uphill(adjective, great, tough, severe, difficult) | |
| demanding(adjective, tough, severe, difficult, harsh) | |
| knotty(adjective, hard, tough, severe, rough) | |
| toilsome(adjective, hard, great, tough, severe) | |
| challenging(verb, adjective, great, tough, severe) | |
| exhausting(adjective, hard, severe, rough, difficult) | |
| testing(noun, adjective, tough, difficult, awkward) | |
| troublesome(adjective, tough, severe, difficult, awkward) | |
| hairy(adjective, hard, tough, severe, rough) | |
| intricate(adjective, tough, severe, difficult, awkward) | |
| irksome(adjective, hard, tough, severe, rough) | |
| mean(adjective, hard, rough, difficult, heavy) |
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| APA | Smart Define. (2015). effortful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/effortful/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "effortful thesaurus" https://smartdefine.org/effortful/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, effortful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/effortful/thesaurus/synonyms>. |
| MLA | Smart Define. "effortful thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/effortful/thesaurus/synonyms> |