95 entries under difficult topic. ×
| formidable(adjective, feature, characteristic, tough, severe) | |
| herculean(adjective, feature, characteristic, tough, severe) | |
| weighty(adjective, tough, severe, harsh) | |
| ponderous(adjective, dull, quiet, easy, severe) | |
| grievous(adjective, bad, tough, severe) | |
| oppressive(adjective, nature, dull, severe, warm) | |
| serious(adjective, strong, hard, great, tough) | |
| burdensome(adjective, dull, tough, severe) | |
| grave(adjective, bad, severe, sad) | |
| severe(adjective, strong, hard, tough) | |
| profound(adjective, easy, severe, obscure) | |
| hard(adjective, person, dull, body, strong) | |
| laborious(adjective, dull, hard, tough, severe) | |
| onerous(adjective, dull, tough, severe) | |
| tedious(adjective, dull, severe, flat) | |
| arduous(adjective, dull, tough, severe, rough) | |
| clumsy(adjective, characteristic, awkward, stiff) | |
| tough(noun, adjective, good, person, dull) | |
| abstruse(adjective, easy, severe, obscure) | |
| awkward(adjective, big, substantial, high) |
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| APA | Smart Define. (2016). heavy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heavy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "heavy thesaurus" https://smartdefine.org/heavy/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, heavy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heavy/thesaurus/synonyms>. |
| MLA | Smart Define. "heavy thesaurus" 25 January 2016. Web. 23 September 2026. <https://smartdefine.org/heavy/thesaurus/synonyms> |