- Definitions|2
- Thesaurus|1k
- Abbreviations|0
65 entries under tough topic. ×
| difficult(adjective, hard, problematic, trying) | |
| stiff(adjective, extraordinary, extreme, grim) | |
| exacting(severe, painful, problematic, trying) | |
| titanic(severe, painful, problematic, trying) | |
| ambitious(severe, painful, problematic, trying) | |
| arduous(severe, painful, problematic, trying) | |
| backbreaker(severe, painful, problematic, trying) | |
| bothersome(severe, painful, problematic, trying) | |
| burdensome(severe, painful, problematic, trying) | |
| challenging(severe, painful, problematic, trying) | |
| crucial(severe, painful, problematic, trying) | |
| demanding(severe, painful, problematic, trying) | |
| difficile(severe, painful, problematic, trying) | |
| easier said than done(expression, severe, painful, problematic) | |
| effortful(severe, painful, problematic, trying) | |
| galling(severe, painful, problematic, trying) | |
| gargantuan(severe, painful, problematic, trying) | |
| hard-won(severe, painful, problematic, trying) | |
| heavy(severe, painful, problematic, trying) | |
| herculean(severe, painful, problematic, trying) |
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| APA | Smart Define. (2015). prohibitive thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/prohibitive/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "prohibitive thesaurus" https://smartdefine.org/prohibitive/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, prohibitive thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/prohibitive/thesaurus/synonyms>. |
| MLA | Smart Define. "prohibitive thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/prohibitive/thesaurus/synonyms> |