87 entries under difficult topic. ×
| mean(adjective, tough, rough, heavy) | |
| merciless(adjective, tough, rough, heavy) | |
| murder(adjective, tough, rough, heavy) | |
| onerous(adjective, tough, rough, heavy) | |
| perplexing(tough, delicate, awkward, tricky) | |
| problematical(adjective, complex, awkward, demanding) | |
| puzzling(awkward, uneasy, tricky, complicated) | |
| rigorous(adjective, tough, rough, heavy) | |
| scabrous(adjective, tough, rough, heavy) | |
| slavish(adjective, tough, rough, heavy) | |
| terrible(adjective, tough, rough, heavy) | |
| tiring(adjective, tough, rough, heavy) | |
| uncertain(tricky, challenging) | |
| unsparing(adjective, tough, rough, heavy) | |
| uphill(adjective, tough, rough, heavy) | |
| uphill battle(expression, adjective, tough, rough) | |
| wearing(adjective, tough, rough, heavy) | |
| wearisome(adjective, tough, rough, heavy) | |
| wearying(adjective, tough, rough, heavy) | |
| challenging(adjective, awkward, demanding, tricky) |
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| APA | Smart Define. (2016). sticky thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sticky/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sticky thesaurus" https://smartdefine.org/sticky/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, sticky thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sticky/thesaurus/synonyms>. |
| MLA | Smart Define. "sticky thesaurus" 2 March 2016. Web. 24 September 2026. <https://smartdefine.org/sticky/thesaurus/synonyms> |