In Stoic thought, a condition in which one is no longer ruled by the passions.
In Stoic thought, a condition in which one is no longer ruled by the passions — those irrational, runaway emotions bred by mistaken judgments about external things. It names the calm steadiness of the sage, and is captured better by “equanimity” than by “indifference.”
Emphatically NOT modern apathy (inertness, not-caring): apatheia is neither a deadening of feeling nor a withdrawal from life. The sage who attains it still knows the eupatheiai (“good feelings”) — a rational joy, a measured caution, a well-aimed wishing, all turned toward what genuinely matters. It resembles the Epicurean ataraxia as a settled, peaceful end-state, yet apatheia arrives as a fruit of virtue rather than something chased directly; “equanimity” and the Buddhist upekkha are its closest cousins.
a- “without” + pathos “passion, suffering” = “freedom from passion.”
Ancient Greek a- (“without”) + pathos (“suffering, passion”).
Stoic in origin (contrasted with Aristotle's metriopatheia, the moderation of emotion — the Stoics sought eradication of the passions, not a mean). Later adopted by Plotinus and into early Christian/monastic spirituality (Evagrius, Maximus the Confessor), where it remains current in Eastern Orthodox thought.
The apatheia-vs-apathy confusion is the central modern pitfall: apatheia is a positive ideal of unshakable calm, the near-opposite of the listless modern “apathy.” Its translation is also contested — “equanimity” vs. “indifference.”