83 entries under problematic topic. ×
| arduous(adjective, dull, hard, great, tough) | |
| tough(adjective, dull, hard, great, easy) | |
| laborious(adjective, dull, hard, great, tough) | |
| burdensome(adjective, dull, hard, tough, severe) | |
| complex(adjective, hard, delicate, complex, awkward) | |
| tricky(noun, adjective, hard, delicate, unpleasant) | |
| severe(adjective, hard, tough, rough, harsh) | |
| troublesome(adjective, hard, tough, severe, evil) | |
| rough(adjective, hard, great, tough, severe) | |
| trying(adjective, dull, hard, tough, severe) | |
| toilsome(adjective, hard, great, tough, difficulty) | |
| thorny(adjective, hard, rough, delicate, complex) | |
| sensitive(adjective, hard, delicate, tender, lively) | |
| sticky(adjective, hard, delicate, complex, awkward) | |
| operose(adjective, hard, tough, severe, difficulty) | |
| demanding(adjective, dull, hard, tough, severe) | |
| troubled(adjective, hard, rough, unhappy, complex) | |
| onerous(adjective, dull, hard, great, tough) | |
| strenuous(adjective, dull, hard, great, tough) | |
| awkward(adjective, tough, rough, harsh, delicate) |
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| APA | Smart Define. (2016). difficult thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/difficult/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "difficult thesaurus" https://smartdefine.org/difficult/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, difficult thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/difficult/thesaurus/synonyms>. |
| MLA | Smart Define. "difficult thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/difficult/thesaurus/synonyms> |