ἀπεπιστήμων
From LSJ
Μούνη γὰρ ἄγειν οὐκέτι σωκῶ λύπης ἀντίρροπον ἄχθος → I have no longer strength to bear alone the burden of grief that weighs me down
-ον, gen. -ονος
ignorante subst. τὸ ἀνεπιστῆμον = la ignorancia ἡ δὲ διὰ τοῦ ἀπεπιστήμονος κακοπραγία Chrysipp.Stoic.3.138.