δυσαποτέλεστος
From LSJ
ἀρχὴν μὲν μὴ φῦναι ἐπιχθονίοισιν ἄριστον· φύντα δ' ὅμως ὤκιστα πύλας Ἀίδαο περῆσαι → First, it is best for mortals to not be born. If born, to pass through Hades' gates as soon as possible.
English (LSJ)
ον,
A hard to accomplish, Eust.1956.18.
German (Pape)
[Seite 676] schwer auszuführen, Eustath.