2
dullness(calmness, composure, unflappability)
2
equilibrium(noun, calm, poise, calmness, dignity)
2
even temper(noun, expression, idiom, calm, restraint)
2
forbearance(noun, restraint, capacity, fortitude, composure)
2
fruit of the spirit
2
inexcitability(noun, calm, poise, calmness, dignity)
2
nirvana
2
peacefulness(noun, control, order, calmness, serenity)
2
philosophy
2
presence of mind(noun, expression, idiom, calm, poise)
2
quietude(noun, calm, control, order, poise)
2
restraint(noun, capacity, fortitude, stamina, perseverance)
2
sedateness(noun, calm, control, order, poise)
2
self-assurance(noun, calm, cool, poise, calmness)
2
stability(noun, calm, balance, poise, calmness)
2
stillness(noun, control, order, calmness, serenity)
2
tolerance(noun, restraint, capacity, stamina, perseverance)
1
accord(noun, calm, poise, calmness, dignity)
1
alertness(cool, calmness, coolness)
1
apathy(noun, calmness, composure, unflappability)
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APASmart Define. (2015). imperturbability thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/imperturbability/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperturbability thesaurus" https://smartdefine.org/imperturbability/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, imperturbability thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/imperturbability/thesaurus/synonyms>.
MLASmart Define. "imperturbability thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/imperturbability/thesaurus/synonyms>