- Definitions|2
- Thesaurus|817
- Abbreviations|0
61 entries under difficult topic. ×
| tough(adjective, great, severe, painful) | |
| backbreaker(hard, tough, severe, painful) | |
| bothersome(adjective, hard, tough, severe) | |
| difficile(adjective, tough, severe, awkward) | |
| distressing(adjective, awkward, demanding, grueling) | |
| disturbing(adjective, offensive, demanding, stimulating) | |
| fatiguing(adjective, awkward, demanding, grueling) | |
| heavy(adjective, tough, severe, awkward) | |
| herculean(adjective, tough, severe, awkward) | |
| intricate(adjective, tough, severe, awkward) | |
| irksome(adjective, awkward, demanding, strenuous) | |
| knotty(adjective, complex, awkward, demanding) | |
| labored(adjective, great, tough, severe) | |
| murder(adjective, great, tough, terrible) | |
| operose(adjective, tough, severe, awkward) | |
| overwhelming(adjective, great, tough, impossible) | |
| taxing(adjective, hard, tough, complex) | |
| testing(adjective, tough, awkward, grim) | |
| tiring(adjective, tough, awkward, grim) | |
| troublesome(adjective, hard, tough, severe) |
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| APA | Smart Define. (2016). challenging thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/challenging/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "challenging thesaurus" https://smartdefine.org/challenging/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, challenging thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/challenging/thesaurus/synonyms>. |
| MLA | Smart Define. "challenging thesaurus" 2 March 2016. Web. 22 September 2026. <https://smartdefine.org/challenging/thesaurus/synonyms> |