- Definitions|1
- Thesaurus|434
- Abbreviations|0
| uniformity | |
| yielding(noun, restraint, capacity, fortitude, composure) | |
| acumen(cool, calmness, coolness) | |
| alienation | |
| aloofness(noun, calmness, composure, detachment, self-possession) | |
| austerity | |
| ballast | |
| chill | |
| cold-bloodedness | |
| colder | |
| confidence(calmness, composure, coolness, levelheadedness, level-headedness) | |
| decorousness(order, orderliness, policing) | |
| decorum(order, orderliness, policing) | |
| discipline(order, orderliness, policing) | |
| disinterest(calmness, composure, unflappability) | |
| dispassionateness | |
| disregard(calmness, composure, unflappability) | |
| docility(calmness, serenity, tranquillity) | |
| emotionlessness(calmness, composure, unflappability) | |
| endurance(noun, restraint, capacity, fortitude, stamina) |
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| APA | Smart Define. (2015). imperturbability thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/imperturbability/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "imperturbability thesaurus" https://smartdefine.org/imperturbability/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, imperturbability thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/imperturbability/thesaurus/synonyms>. |
| MLA | Smart Define. "imperturbability thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/imperturbability/thesaurus/synonyms> |