imperturbation

[ im-per-ter-bey-shuhn ]

noun

freedom from perturbation; tranquility; calmness: I grew up in a family with nine kids, and I promise you there was never a moment of imperturbation!

Origin of imperturbation

First recorded in 1640–50; from Late Latin imperturbātiōn- (stem of imperturbātiō ); see im-², perturbation

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