- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
148 entries under difficult topic. ×
| arduous(adjective, dull, great, tough, severe) | |
| laborious(adjective, dull, hard, great, tough) | |
| tough(adjective, action, dull, strong, great) | |
| toilsome(adjective, great, tough, severe) | |
| difficult(adjective, dull, hard, great, tough) | |
| hard(adjective, dull, great, tough, severe) | |
| active(adjective, action, strong, tough) | |
| exhausting(adjective, dull, hard, awkward) | |
| onerous(adjective, dull, great, tough) | |
| burdensome(adjective, dull, tough, severe) | |
| demanding(adjective, dull, hard, tough, severe) | |
| tiring(adjective, dull, tough, full) | |
| eager(adjective, activity, energetic, determined) | |
| spirited(adjective, strong, tough, energetic) | |
| zealous(adjective, activity, strong, tough, smart) | |
| taxing | |
| animated(adjective, strong, moving, energetic) | |
| exacting(adjective, dull, tough, severe, rough) | |
| forceful(adjective, action, strong, tough, smart) | |
| industrious(adjective, strong, lively, determined) |
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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> |