100 entries under restrained topic. ×
| eschewing(adjective, calm, sensible, dark) | |
| forgoing(adjective, calm, sensible, dark) | |
| hard-hearted(adjective, calm, subdued, impassive) | |
| hushed(quiet, gentle) | |
| impervious(adjective, calm, subdued, impassive) | |
| indifferent(adjective, calm, subdued, impassive) | |
| inobtrusive(quiet, gentle) | |
| laid-back(adjective, calm, cool, subdued) | |
| low(adjective, quiet, gentle, unhappy, unpleasant) | |
| lucid(adjective, calm, sensible, dark) | |
| lukewarm(adjective, calm, subdued, impassive) | |
| mellow(quiet, gentle) | |
| moderated(quiet, gentle) | |
| muted(quiet, gentle) | |
| neutral(quiet, gentle) | |
| not influenced(expression, adjective, calm, subdued) | |
| out of spirits(expression, idiom, quiet, gentle) | |
| pacific(adjective, calm, sensible, alert) | |
| peaceful dull(expression, calm, sensible, dark) | |
| proof(adjective, calm, subdued, impassive) |
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| APA | Smart Define. (2016). serious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/serious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, serious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/serious/thesaurus/synonyms>. |
| MLA | Smart Define. "serious thesaurus" 24 February 2016. Web. 26 September 2026. <https://smartdefine.org/serious/thesaurus/synonyms> |