incompetence
From LSJ
πρὸ τελευτῆς μὴ μακάριζε μηδένα, καὶ ἐν τέκνοις αὐτοῦ γνωσθήσεται ἀνήρ → Count no man blessed before his end; a man will be recognized in his offspring. (Ecclesiasticus 11:28)
P. ἀδυναμία, ἡ, μοχθηρία, ἡ, P. and V. φαυλότης, ἡ (Euripides, Fragment).