110 entries under calm topic. ×
| low-key(adjective, quiet, gentle, sensible) | |
| nonchalant(adjective, relaxed, tranquil, easygoing) | |
| not turn a hair(expression, adjective, idiom, relaxed) | |
| plain(adjective, open, tough, honest) | |
| poised(adjective, sensible, relaxed, steady) | |
| possessed(adjective, relaxed, tranquil, easygoing) | |
| quieted(adjective, relaxed, tranquil, easygoing) | |
| relaxed(adjective, tranquil, easygoing, serene) | |
| repressed(adjective, quiet, gentle, relaxed) | |
| self-assured(adjective, relaxed, tranquil, easygoing) | |
| soft(adjective, quiet, gentle, sensible) | |
| soothed(adjective, relaxed, tranquil, easygoing) | |
| suppressed(adjective, relaxed, tranquil, easygoing) | |
| sure of oneself(expression, adjective, idiom, relaxed) | |
| together(adjective, relaxed, tranquil, easygoing) | |
| toned down(expression, adjective, quiet, gentle) | |
| unexcited(adjective, sensible, dark, restrained) | |
| unimpassioned(adjective, tough, dark, restrained) | |
| untroubled(adjective, relaxed, tranquil, easygoing) | |
| abnegating(adjective, sensible, dark, restrained) |
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| APA | Smart Define. (2016). serious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/serious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, serious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/serious/thesaurus/synonyms>. |
| MLA | Smart Define. "serious thesaurus" 24 February 2016. Web. 28 September 2026. <https://smartdefine.org/serious/thesaurus/synonyms> |