205 entries under difficult topic. ×
| grievous(adjective, tough, severe, rough) | |
| intricate(adjective, property, complex, awkward) | |
| operose(adjective, tough, severe, difficulty, rough) | |
| oppressive(adjective, dull, tough, severe, rough) | |
| thorny(adjective, rough, delicate, complex) | |
| trying(adjective, dull, tough, severe, rough) | |
| knotty(adjective, severe, rough, violent) | |
| painful(adjective, evil, rough, nasty) | |
| taxing(adjective, tough, severe, rough) | |
| stern(adjective, person, mean, tough, easy) | |
| backbreaking(adjective, heavy, complex, awkward) | |
| punishing(adjective, complex) | |
| grinding(adjective, harsh, pain, cruel) | |
| grave(adjective, tough, severe, harsh) | |
| hard-nosed(adjective, mean, strong, tough, severe) | |
| serious(adjective, strong, tough, easy, severe) | |
| sore(adjective, pain, complex, sickness) | |
| sticky(adjective, complex, awkward, demanding) | |
| hefty(adjective, person, dull, body, strong) | |
| tricky(adjective, delicate, complex, awkward) |
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| APA | Smart Define. (2016). hard thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/hard/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, hard thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>. |
| MLA | Smart Define. "hard thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms> |