- Definitions|2
- Thesaurus|383
- Abbreviations|0
97 entries under adjective topic. ×
| complex(hard, difficult) | |
| elaborate(hard, difficult, complex) | |
| grave(hard, tough, severe, difficult) | |
| hefty(hard, difficult, complex) | |
| involved(hard, difficult, complex, awkward) | |
| knotted(hard, difficult, complex) | |
| oppressive(hard, difficult, complex) | |
| problematic(hard, difficult, complex) | |
| taxing(hard, difficult, complex) | |
| toilful(hard, difficult, complex, awkward) | |
| trying(hard, difficult, complex) | |
| complicated(hard, difficult, complex, awkward) | |
| grinding(hard, difficult, complex, awkward) | |
| nasty(hard, difficult, complex) | |
| weighty(hard, difficult, complex) | |
| grueling(hard, tough, difficult, awkward) | |
| industrious(work, tedious, labour, hardworking) | |
| gruelling | |
| heavy(tough, severe, rough, difficult) | |
| strenuous(hard, tough, severe, rough) |
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| APA | Smart Define. (2015). operose thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/operose/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "operose thesaurus" https://smartdefine.org/operose/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, operose thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/operose/thesaurus/synonyms>. |
| MLA | Smart Define. "operose thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/operose/thesaurus/synonyms> |