- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
| perplexing(hard, severe, offensive, distressing, upsetting) | |
| persnickety | |
| plaguey | |
| plodding(adjective, difficult) | |
| problem(tough, severe, painful, problematic, trying) | |
| problematic(tough, severe, painful, trying) | |
| prohibitive(tough, severe, painful, problematic, trying) | |
| racking | |
| responsible(adjective, difficult) | |
| rigid(tough, correct, severe, harsh, proper) | |
| sticky(adjective, tough, rough, difficult, heavy) | |
| stodgy | |
| strained | |
| strict | |
| stringent | |
| terrible(adjective, tough, severe, rough, difficult) | |
| testing(adjective, tough, difficult, awkward, grim) | |
| threatening(hard, tough, severe, difficult, offensive) | |
| tired(adjective, dull, boring, tedious, irritating) | |
| toilsomely |
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| APA | Smart Define. (2015). onerous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/onerous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "onerous thesaurus" https://smartdefine.org/onerous/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, onerous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/onerous/thesaurus/synonyms>. |
| MLA | Smart Define. "onerous thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/onerous/thesaurus/synonyms> |