62 entries under demanding topic. ×
| operose(adjective, tough, severe, difficult, violent) | |
| picky(tough, thorough, problematic, trying) | |
| problematical(adjective, difficult, awkward, grueling) | |
| rigid(tough, thorough, problematic, trying) | |
| rigorous(adjective, severe, difficult, violent, awkward) | |
| rugged(adjective, severe, difficult, violent, awkward) | |
| scabrous(adjective, difficult, awkward, grueling) | |
| serious(adjective, difficult, awkward, grueling) | |
| slavish(adjective, difficult, awkward, grueling) | |
| sticky(adjective, difficult, awkward, grueling) | |
| stiff(adjective, tough, grim, problematic) | |
| terrible(adjective, difficult, awkward, grueling) | |
| tiring(adjective, tough, difficult, awkward, grim) | |
| toilful(adjective, difficult, awkward, grueling) | |
| toilsome(adjective, tough, difficult, awkward, grim) | |
| tricky(adjective, difficult, awkward, strenuous) | |
| troublesome(adjective, difficult, awkward, strenuous) | |
| unsparing(adjective, difficult, awkward, thorough) | |
| uphill battle(expression, adjective, difficult, awkward) | |
| wearing(adjective, difficult, awkward, grueling) |
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| APA | Smart Define. (2015). testing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/testing/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "testing thesaurus" https://smartdefine.org/testing/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, testing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/testing/thesaurus/synonyms>. |
| MLA | Smart Define. "testing thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/testing/thesaurus/synonyms> |