100 entries under restrained topic. ×
| repentant(quiet, gentle) | |
| shaded(quiet, gentle) | |
| softened(quiet, gentle) | |
| submissive(quiet, gentle) | |
| subtle(quiet, gentle, deep, thoughtful) | |
| tasteful(adjective, quiet, gentle, sober) | |
| tempered(quiet, gentle) | |
| tepid(adjective, calm, subdued, impassive) | |
| thick-skinned(adjective, calm, subdued, impassive) | |
| unaltered(adjective, calm, subdued, impassive) | |
| unchanged(adjective, calm, subdued, impassive) | |
| unconcerned(adjective, calm, subdued, impassive) | |
| unenthusiastic(adjective, calm, subdued, impassive) | |
| unimpressed(adjective, calm, subdued, impassive) | |
| uninfluenced(adjective, calm, subdued, impassive) | |
| unmoved(adjective, calm, subdued, impassive) | |
| unobtrusive(quiet, gentle) | |
| unresponsive(adjective, calm, subdued, impassive) | |
| unstirred(adjective, calm, subdued, impassive) | |
| untouched(adjective, calm, subdued, impassive) |
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| APA | Smart Define. (2016). serious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/serious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, serious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/serious/thesaurus/synonyms>. |
| MLA | Smart Define. "serious thesaurus" 24 February 2016. Web. 27 September 2026. <https://smartdefine.org/serious/thesaurus/synonyms> |