192 entries under sober topic. ×
| justifiable(adjective, sound, sensible, rational, intelligent) | |
| matter-of-fact(adjective, calm, reasonable, rational, detached) | |
| no-nonsense(adjective, calm, tough, sharp, sensible) | |
| nondiscriminatory(adjective, calm, detached, unfeeling) | |
| nowhere(adjective, detached, blank, unfeeling) | |
| observant(adjective, deliberate, alert, significant, familiar) | |
| perceiving(adjective, sound, sensible, rational, intelligent) | |
| percipient(adjective, sound, sensible, significant, familiar) | |
| plausible(adjective, sound, sensible, rational, intelligent) | |
| poker face(expression, adjective, detached, blank) | |
| punctilious(thoughtful, cautious, prudent, wary) | |
| ratiocinative(adjective, sound, reasonable, sensible, rational) | |
| reasoned(adjective, sound, reasonable, sensible, rational) | |
| reasoning(adjective, sound, reasonable, sensible, rational) | |
| reflective(adjective, sound, reasonable, sensible, rational) | |
| right(adjective, kind, pleasant, friendly, sensible) | |
| sage(adjective, smooth, reasonable, sharp, smart) | |
| set(adjective, mean, firm, solid, certain) | |
| shrewd(reasonable, sharp, significant, wise) | |
| solicitous(adjective, understanding, kind, deliberate, sympathetic) |
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| APA | Smart Define. (2016). cool thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/cool/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "cool thesaurus" https://smartdefine.org/cool/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, cool thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/cool/thesaurus/synonyms>. |
| MLA | Smart Define. "cool thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/cool/thesaurus/synonyms> |