Word Study
ataraxy
CIDE DICTIONARY
ataraxy, n. [NL. ataraxia, Gr. 'ataraxi`a; 'a priv. + tarakto`s disturbed, tara`ssein to disturb.].
Perfect peace of mind, or calmness. [1913 Webster]
OXFORD DICTIONARY
ataraxy, n. (also ataraxia) calmness or tranquillity; imperturbability.
Etymology
F ataraxie f. Gk ataraxia impassiveness
THESAURUS
ataraxy
accidia, acedia, aloofness, apathy, ataraxia, benumbedness, blah, blahs, bovinity, calmness, carelessness, casualness, comatoseness, composure, contemplation, coolness, detachment, disinterest, dispassion, dispassionateness, disregard, disregardfulness, dullness, easy temper, easygoingness, even temper, good temper, heartlessness, hebetude, heedlessness, hopelessness, impassiveness, impassivity, imperturbability, imperturbableness, inappetence, inattention, incuriosity, indifference, indiscrimination, inexcitability, inexcitableness, inirritability, insouciance, lack of affect, lack of appetite, lackadaisicalness, languidness, lethargicalness, lethargy, listlessness, lucid stillness, marmoreal repose, mindlessness, negligence, nirvana, nonchalance, numbness, passiveness, passivity, patience, peace, peacefulness, phlegm, phlegmaticalness, phlegmaticness, placidity, placidness, plucklessness, pococurantism, quiescence, quiescency, quiet, quietism, quietness, quietude, recklessness, regardlessness, repose, resignation, resignedness, rest, restfulness, sangfroid, satori, serenity, silence, silken repose, sleep, sloth, sluggishness, slumber, smooth temper, sopor, soporifousness, spiritlessness, spunklessness, steadiness, stillness, stoicism, stolidity, stupefaction, stupor, supineness, torpidity, torpidness, torpor, tranquillity, unanxiousness, unconcern, unirritableness, unmindfulness, unnervousness, unpassionateness, unsolicitousness, wise passiveness, withdrawnnessFor further exploring for "ataraxy" in Webster Dictionary Online