- Definitions|2
- Thesaurus|2.4k
- Abbreviations|0
87 entries under rough topic. ×
| heavy(adjective, feature, characteristic, tough, severe) | |
| herculean(adjective, feature, characteristic, tough, severe) | |
| arduous(adjective, tough, severe, difficulty) | |
| tough(adjective, strong, severe, difficulty) | |
| laborious(adjective, tough, severe, difficulty) | |
| difficult(adjective, hard, tough, severe, evil) | |
| hard(adjective, tough, severe, evil, difficulty) | |
| strenuous(adjective, tough, severe, difficult) | |
| uphill(adjective, tough, severe, difficult) | |
| demanding(adjective, tough, severe, difficult) | |
| rugged(adjective, hard, severe, evil) | |
| dangerous(adjective, hard, tough, severe, evil) | |
| knotty(adjective, hard, severe, difficult) | |
| operose(adjective, tough, severe, difficulty) | |
| trying(adjective, tough, severe, difficult) | |
| exacting(adjective, tough, severe, difficult) | |
| harsh(adjective, hard, great, severe) | |
| troublesome(adjective, hard, tough, severe, evil) | |
| hairy(adjective, bad, severe, difficult) | |
| rude(adjective, hard, nasty, cruel) |
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| APA | Smart Define. (2015). formidable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/formidable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "formidable thesaurus" https://smartdefine.org/formidable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, formidable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/formidable/thesaurus/synonyms>. |
| MLA | Smart Define. "formidable thesaurus" 17 July 2015. Web. 21 September 2026. <https://smartdefine.org/formidable/thesaurus/synonyms> |