- Definitions|1
- Thesaurus|446
- Abbreviations|0
40 entries under serious topic. ×
| staid | |
| earnest(adjective, work, heavy) | |
| grave | |
| grim | |
| sedate | |
| sober | |
| solemn | |
| unsmiling | |
| weighty | |
| severe | |
| thoughtful | |
| businesslike(adjective, work, heavy) | |
| long-faced | |
| no-nonsense(adjective, work, heavy) | |
| resolute | |
| set | |
| steady | |
| stern | |
| unhumorous | |
| austere |
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| APA | Smart Define. (2015). sobersided thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sobersided/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sobersided thesaurus" https://smartdefine.org/sobersided/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, sobersided thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sobersided/thesaurus/synonyms>. |
| MLA | Smart Define. "sobersided thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/sobersided/thesaurus/synonyms> |