- Definitions|2
- Thesaurus|2.1k
- Abbreviations|0
84 entries under tough topic. ×
| unyielding(adjective, hard, severe, grim) | |
| uphill battle(expression, adjective, rough, difficult) | |
| upstream(severe, painful, problematic, trying) | |
| argumentative(problematic, trying) | |
| bearish(problematic, trying) | |
| boorish(problematic, trying) | |
| clamorous(adjective, hard, difficult, challenging) | |
| fastidious(problematic, trying) | |
| fractious(problematic, trying) | |
| hard to please(expression, idiom, problematic, trying) | |
| impolite(problematic, trying) | |
| intractable(problematic, trying, disorderly, unruly) | |
| irritable(problematic, trying) | |
| oafish(problematic, trying) | |
| obstreperous(problematic, trying) | |
| perverse(problematic, trying) | |
| picky(problematic, trying) | |
| refractory(problematic, trying, disorderly, unruly) | |
| rude(problematic, trying) | |
| scabrous(adjective, rough, difficult, heavy) |
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| APA | Smart Define. (2016). arduous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/arduous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "arduous thesaurus" https://smartdefine.org/arduous/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, arduous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/arduous/thesaurus/synonyms>. |
| MLA | Smart Define. "arduous thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/arduous/thesaurus/synonyms> |