95 entries under difficult topic. ×
| grueling(adjective, hard, tough, severe) | |
| labored(adjective, tough, severe, awkward) | |
| recondite(adjective, easy, severe, obscure) | |
| backbreaking(adjective, hard, harsh, cruel) | |
| operose(adjective, tough, severe, rough) | |
| rough(noun, adjective, calm, strong, hard) | |
| solemn(adjective, quiet, severe, sad) | |
| tiresome(adjective, dull, tough, flat) | |
| toilsome(adjective, tough, severe, harsh) | |
| troublesome(adjective, tough, severe, harsh) | |
| distressing(adjective, tough, severe, rough) | |
| esoteric(adjective, easy, severe, obscure) | |
| effortful(adjective, tough, severe, harsh) | |
| harsh(adjective, strong, hard, tough, severe) | |
| intolerable(adjective, severe) | |
| rugged(adjective, calm, strong, hard, sound) | |
| strenuous(adjective, dull, tough, severe, rough) | |
| violent(adjective, calm, severe, rough) | |
| wearisome(adjective, dull, tough, severe) | |
| painful(adjective, hard, tough, severe) |
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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> |