• (British) IPA: /ˈatəɹaksi/

ataraxy (uncountable)

1. Freedom from mental disturbance; imperturbability, dogged indifference.
   • 1603, Michel de Montaigne, chapter 12, in John Florio, transl., The Essayes, […], book II, printed at London: By Val[entine] Simmes for Edward Blount […], OCLC 946730821 ↗:

     When the Pyrrhonians say, that ataraxy is the chiefe felicitie, which is the immobilitie of judgement, their meaning is not to speake it affirmatively […].

• Spanish: ataraxia