ἀπροαίρετος
From LSJ
Ἔστιν τι κἀν κακοῖσιν ἡδονῆς μέτρον → Voluptas aliqua inest vel infortunio → Es wohnt im Leid auch ein begrenztes Maß an Lust
English (LSJ)
ον,
A without set purpose, not deliberate, of actions, Arist.EN1135b10, Arr.Epict.2.16.1, Plot.1.2.5, etc. Adv. -τως Hp.Prog.2, Arist. EN1106a3, Phld. Ir.p.93 W., etc. 2 of things, incapable of choice or purpose, Hermog. Id.2.4; not under the control of will, Phld.D.3Fr.75, M.Ant.6.41,al.