несведущий
From LSJ
οὗτος ὁ υἱός μου νεκρὸς ἦν καὶ ἀνέζησεν, ἦν ἀπολωλὼς καὶ εὑρέθη → This son of mine was dead and has come back to life. He was lost and he's been found.
ἄϊδρις, ἀπείρατος, ἀπείρητος, ἀθεώρητος, ἀδαής, ἀΐστωρ, ἀνεπιστήμων, ἀδίδακτος, ἄπειρος, ἀδαήμων, νῆϊς, ἀνήκοος, ἰδιώτης