- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
54 entries under heavy topic. ×
| worrying(adjective, hard, severe, difficult, offensive) | |
| dull(adjective, boring, tedious, weighty) | |
| hairy(adjective, hard, tough, severe, rough) | |
| headache(adjective, difficult, cruel, arduous) | |
| mean(adjective, hard, rough, difficult) | |
| overtaxing(adjective, difficult, arduous, burdensome) | |
| sticky(adjective, tough, rough, difficult) | |
| terrible(adjective, tough, severe, rough, difficult) | |
| unsparing(adjective, tough, rough, difficult, harsh) | |
| involved(adjective, tough, rough, difficult) | |
| scabrous(adjective, tough, rough, difficult) | |
| slavish(adjective, tough, rough, difficult) | |
| toilful(adjective, tough, rough, difficult) | |
| uphill battle(expression, adjective, tough, rough, difficult) |
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| APA | Smart Define. (2015). onerous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/onerous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "onerous thesaurus" https://smartdefine.org/onerous/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, onerous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/onerous/thesaurus/synonyms>. |
| MLA | Smart Define. "onerous thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/onerous/thesaurus/synonyms> |