116 entries under tough topic. ×
| dense(adjective, set, strong, hard) | |
| intractable(adjective, hard, rough, firm) | |
| laborious(adjective, hard, severe, rough) | |
| difficult(adjective, hard, severe, rough) | |
| thick(adjective, set, hard, rough) | |
| unswayable(adjective, firm, determined, resolute) | |
| aloof(adjective, cool, correct, firm) | |
| arduous(adjective, hard, severe, rough) | |
| compact(adjective, set, hard, firm) | |
| distant(adjective, correct, firm, cold) | |
| exacting(adjective, hard, severe, rough) | |
| heavy(adjective, set, hard, severe) | |
| uphill(adjective, severe, difficult, grim) | |
| labored(adjective, severe, difficult, unusual) | |
| reserved(correct, cold, unfriendly, fixed) | |
| rude(adjective, tasteless, problematic, clumsy) | |
| sturdy(adjective, strong, hard, solid) | |
| uptight(adjective, firm, uncertain, anxious) | |
| compressed(adjective, set, hard, firm) | |
| formidable(adjective, great, severe, difficult) |
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| APA | Smart Define. (2015). stiff thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, stiff thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>. |
| MLA | Smart Define. "stiff thesaurus" 24 December 2015. Web. 28 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms> |