- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
102 entries under difficult topic. ×
| merciless(adjective, tough, rough, heavy) | |
| operose(adjective, tough, severe, difficulty) | |
| overpowering(adjective, tiring) | |
| rigorous(adjective, hard, severe, rough) | |
| rough(adjective, hard, great, tough, severe) | |
| serious(adjective, hard, tough, severe, rough) | |
| tedious(adjective, dull, boring, demanding) | |
| time-consuming(adjective, hard, tough, slow) | |
| tiresome(adjective, hard, severe, heavy) | |
| wearing(adjective, dull, hard, tough) | |
| complicated(adjective, hard, tough, severe, rough) | |
| galling(adjective, tough, severe, heavy) | |
| grueling(adjective, hard, tough, heavy) | |
| intolerable(adjective, tiring) | |
| complex | |
| excessive(adjective, tiring) | |
| ticklish | |
| tricky(adjective, awkward, demanding, irritating) | |
| cantankerous | |
| finicky(adjective, tough, harsh, rigid) |
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| APA | Smart Define. (2015). onerous thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/onerous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "onerous thesaurus" https://smartdefine.org/onerous/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, onerous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/onerous/thesaurus/synonyms>. |
| MLA | Smart Define. "onerous thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/onerous/thesaurus/synonyms> |