119 entries under severe topic. ×
| acute(adjective, harsh, heavy, important) | |
| urgent(adjective, hard, tough, difficult) | |
| essential(adjective, importance, big, important) | |
| thoughtful(adjective, deep, sober, thinking) | |
| desperate(adjective, significant, extreme, vital) | |
| intense(adjective, keen, warm, sensible) | |
| no-nonsense(adjective, calm, dull, work, open) | |
| resolute(adjective, firm, sensible, harsh) | |
| bad(adjective, nasty, offensive, unhappy) | |
| dignified(adjective, calm, cool, important) | |
| dour(adjective, close, hard, harsh) | |
| somber(adjective, calm, dull, cool) | |
| austere(adjective, set, strong, hard, tough) | |
| awful(adjective, bad, offensive, intense) | |
| decisive(adjective, great, firm, extraordinary) | |
| deliberate(adjective, calm, set, cool) | |
| resolved(adjective, firm, harsh, cruel) | |
| threatening(adjective, bad, unpleasant, heavy) | |
| distressing(adjective, tough, rough, difficult) | |
| saturnine(adjective, unpleasant, horrible, disagreeable) |
For more, visit
Serious on
Power Thesaurus
| APA | Smart Define. (2016). serious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/serious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, serious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/serious/thesaurus/synonyms>. |
| MLA | Smart Define. "serious thesaurus" 24 February 2016. Web. 25 September 2026. <https://smartdefine.org/serious/thesaurus/synonyms> |