367 entries under hard topic. ×
| difficult(adjective, dull, great, easy) | |
| severe(adjective, clear, bad, strong) | |
| rugged(adjective, action, strong, sound) | |
| rough(noun, adjective, action, person, mean) | |
| strong(adjective, calm, person, body, strong) | |
| arduous(adjective, dull, great, easy) | |
| laborious(adjective, dull, great, easy) | |
| burdensome(adjective, dull, difficult, harsh) | |
| harsh(adjective, mean, strong, cool) | |
| stubborn(adjective, characteristic, quality, mean, strong) | |
| stressful(adjective, difficult, complex) | |
| knotty(adjective, difficult, complex, troublesome) | |
| sticky(adjective, feature, characteristic, difficult) | |
| taxing(adjective, severe, rough, difficult) | |
| toilsome(adjective, difficulty, difficult, complex) | |
| hard-nosed(adjective, mean, clear, strong) | |
| unyielding(adjective, characteristic, mean, clear, strong) | |
| trying(adjective, dull, rough, difficult) | |
| burly(adjective, difficult, complex) | |
| oppressive(adjective, dull, severe, firm) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/tough/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms> |