ἀμάστρευτος
From LSJ
κακὸς μὲν γὰρ ἑκὼν οὐδείς → no one is voluntarily wicked, no one is voluntarily bad
English (LSJ)
ον, (μαστρός) A unexamined, IG5(2).357.38 (Stymphalus, iii B. C.).
Spanish (DGE)
-ον no examinado, IG 5(2).357.38 (Estínfalo III a.C.).