- Definitions|2
- Thesaurus|383
- Abbreviations|0
77 entries under difficult topic. ×
| elaborate(adjective, hard, complex) | |
| grave(adjective, hard, tough, severe) | |
| hefty(adjective, hard, complex) | |
| involved(adjective, hard, complex, awkward) | |
| knotted(adjective, hard, complex) | |
| oppressive(adjective, hard, complex) | |
| problematic(adjective, hard, complex) | |
| taxing(adjective, hard, complex) | |
| toilful(adjective, hard, complex, awkward) | |
| trying(adjective, hard, complex) | |
| complicated(adjective, hard, complex, awkward) | |
| grinding(adjective, hard, complex, awkward) | |
| nasty(adjective, hard, complex) | |
| weighty(adjective, hard, complex) | |
| grueling(adjective, hard, tough, awkward) | |
| heavy(adjective, tough, severe, rough) | |
| strenuous(adjective, hard, tough, severe, rough) | |
| formidable(adjective, tough, severe, rough) | |
| onerous(adjective, tough, severe, awkward) | |
| troublesome(adjective, tough, severe, awkward) |
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| APA | Smart Define. (2015). operose thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/operose/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "operose thesaurus" https://smartdefine.org/operose/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, operose thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/operose/thesaurus/synonyms>. |
| MLA | Smart Define. "operose thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/operose/thesaurus/synonyms> |