239 entries under severe topic. ×
| acrid(adjective, harsh, gloomy, awkward) | |
| acrimonious(adjective, harsh, gloomy, awkward) | |
| asleep(adjective, hard, cruel, unsympathetic) | |
| backbreaker(hard, difficult, painful, problematic) | |
| benumbed(adjective, hard, cruel, unfeeling) | |
| bitter(adjective, strong, hard, sharp) | |
| bleak(adjective, harsh, dark, cruel) | |
| brick-wall(calm, strong, solid, steady) | |
| by the book(expression, adjective, idiom, strong, hard) | |
| churlish(adjective, hard, harsh, rude) | |
| coarse(adjective, strong, hard, rough) | |
| crotchety(adjective, hard, harsh, cruel) | |
| crucial(painful, problematic, weighty, trying) | |
| cussed(adjective, hard, sharp, firm) | |
| damaging(adjective, bad, offensive, awful) | |
| dangerous(adjective, bad, hard, rough) | |
| deadened(adjective, hard, cruel, unsympathetic) | |
| deep(adjective, clear, important, determined) | |
| disciplinary(adjective, strong, hard, firm) | |
| discourteous(adjective, hard, sharp, nasty) |
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| APA | Smart Define. (2016). tough thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tough/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, tough thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>. |
| MLA | Smart Define. "tough thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms> |