- Definitions|2
- Thesaurus|2.4k
- Abbreviations|0
104 entries under difficult topic. ×
| bothersome(adjective, tough, severe, awkward) | |
| cantankerous(adjective, hard, evil, rough, nasty) | |
| cumbersome | |
| delicate(bad, hard, heavy, complex) | |
| difficile(adjective, tough, severe, rough) | |
| distressing(adjective, bad, tough, severe, rough) | |
| exhausting(adjective, hard, tough, severe, rough) | |
| grievous(adjective, tough, severe, unpleasant) | |
| grinding(adjective, tough, severe, rough) | |
| intricate(adjective, hard, tough, severe) | |
| mammoth(adjective, overwhelming) | |
| nasty(adjective, bad, hard, rough) | |
| slavish(adjective, tough, rough, heavy) | |
| tiring(adjective, hard, tough, severe, rough) | |
| violent(adjective, hard, severe, rough) | |
| tight | |
| adverse | |
| ballbuster(adjective, overwhelming) | |
| contrary | |
| fatiguing(adjective, hard, tough, severe, rough) |
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| APA | Smart Define. (2015). formidable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/formidable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "formidable thesaurus" https://smartdefine.org/formidable/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, formidable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/formidable/thesaurus/synonyms>. |
| MLA | Smart Define. "formidable thesaurus" 17 July 2015. Web. 20 September 2026. <https://smartdefine.org/formidable/thesaurus/synonyms> |