- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
148 entries under difficult topic. ×
| troublesome(adjective, tough, severe, awkward) | |
| Herculean(adjective, strong, tough, severe) | |
| indefatigable(adjective, strong, moving, energetic) | |
| knotty(adjective, hard, severe, rough) | |
| murderous | |
| stiff(adjective, tough, severe, painful) | |
| thorny(adjective, embarrassing) | |
| tight | |
| tricky(adjective, awkward, demanding, irritating) | |
| complex | |
| fervent(adjective, vigorous, stressful) | |
| finicky(adjective, thorough, meticulous, painstaking) | |
| fussy(adjective, thorough, meticulous, painstaking) | |
| mean(adjective, strong, hard, severe, rough) | |
| painful(adjective, hard, tough, severe) | |
| rigorous(adjective, hard, tough, severe, rough) | |
| serious(adjective, hard, severe, rough) | |
| sticky(adjective, tough, rough, heavy) | |
| ticklish | |
| wearing(adjective, dull, awkward, boring) |
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| APA | Smart Define. (2016). strenuous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/strenuous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "strenuous thesaurus" https://smartdefine.org/strenuous/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, strenuous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/strenuous/thesaurus/synonyms>. |
| MLA | Smart Define. "strenuous thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/strenuous/thesaurus/synonyms> |