- Definitions|1
- Thesaurus|302
- Abbreviations|0
59 entries under difficult topic. ×
| involved(adjective, tough, rough, heavy) | |
| irksome(adjective, hard, tough, severe, rough) | |
| mean(adjective, hard, rough, heavy) | |
| murder(adjective, great, tough, rough) | |
| problematic(tough, severe, awkward, painful) | |
| problematical(adjective, complex, awkward, demanding) | |
| rugged(adjective, hard, tough, rough) | |
| serious(adjective, hard, tough, severe, rough) | |
| sticky(adjective, tough, rough, heavy) | |
| terrible(adjective, tough, rough, heavy) | |
| tiresome(adjective, tough, problematic, trying) | |
| toilful(adjective, tough, rough, heavy) | |
| tricky(adjective, complex, awkward, demanding) | |
| unsparing(adjective, tough, rough, harsh) | |
| awkward(adjective, complex, demanding, complicated) | |
| merciless(adjective, tough, rough, heavy) | |
| scabrous(adjective, tough, rough, heavy) | |
| slavish(adjective, tough, rough, heavy) | |
| uphill battle(expression, adjective, tough, rough) |
For more, visit
Effortful on
Power Thesaurus
| APA | Smart Define. (2015). effortful thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/effortful/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "effortful thesaurus" https://smartdefine.org/effortful/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, effortful thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/effortful/thesaurus/synonyms>. |
| MLA | Smart Define. "effortful thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/effortful/thesaurus/synonyms> |