104 entries under impassive topic. ×
| hard-hearted(adjective, calm, restrained, subdued) | |
| impervious(adjective, calm, restrained, subdued) | |
| indifferent(adjective, calm, restrained, subdued) | |
| laid-back(adjective, calm, cool, restrained, subdued) | |
| lucid(adjective, calm, sensible, dark, restrained) | |
| lukewarm(adjective, calm, restrained, subdued) | |
| not influenced(expression, adjective, calm, restrained, subdued) | |
| pacific(adjective, calm, sensible, restrained, alert) | |
| peaceful dull(expression, calm, sensible, dark, restrained) | |
| proof(adjective, calm, restrained, subdued) | |
| stony(adjective, deadpan, poker-faced, unsmiling) | |
| tepid(adjective, calm, restrained, subdued) | |
| thick-skinned(adjective, calm, restrained, subdued) | |
| unaltered(adjective, calm, restrained, subdued) | |
| unchanged(adjective, calm, restrained, subdued) | |
| unconcerned(adjective, calm, restrained, subdued) | |
| unenthusiastic(adjective, calm, restrained, subdued) | |
| unimpressed(adjective, calm, restrained, subdued) | |
| uninfluenced(adjective, calm, restrained, subdued) | |
| unmoved(adjective, calm, restrained, subdued) |
For more, visit
Serious on
Power Thesaurus
| 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> |