- Definitions|1
- Thesaurus|190
- Abbreviations|0
| quietude(noun, calm, control, order, quiet) | |
| tranquillity(noun, calm, quiet, rest, peace) | |
| calmness(noun, calm, control, order, quiet) | |
| peace of mind(noun, expression, idiom, calm, quiet) | |
| serenity(noun, calm, control, order, quiet) | |
| composure(noun, control, order, quiet, peace) | |
| coolness(noun, calm, control, order, peace) | |
| quiet(noun, calm, control, order, rest) | |
| tranquility(noun, calm, control, order, quiet) | |
| calm(noun, control, order, quiet, rest) | |
| coldness(noun, insensibility) | |
| cool | |
| imperturbability(noun, calm, control, order, calmness) | |
| peacefulness(noun, calm, control, order, quiet) | |
| placidity(noun, calm, control, order, quiet) | |
| aplomb | |
| callousness | |
| countenance | |
| deadness | |
| dispassion(noun, calm, quiet, rest, restraint) |
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| APA | Smart Define. (2015). imperturbation thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/imperturbation/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "imperturbation thesaurus" https://smartdefine.org/imperturbation/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, imperturbation thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/imperturbation/thesaurus/synonyms>. |
| MLA | Smart Define. "imperturbation thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/imperturbation/thesaurus/synonyms> |