δυσεκπόνητος
From LSJ
κρεῖττον εἶναι φιλοσόφως ἀποθανεῖν ἢ ἀφιλοσόφως ζῆν → that it is better to die in manner befitting a philosopher than to live unphilosophically
English (LSJ)
ον, τιμωρίας καὶ πόνους δυς[εκπο] νήτους A hard to endure, Phld.Herc.1251.12 (dub. rest.).
Spanish (DGE)
-ον difícil de soportar πόνοι Phld.Elect.12.8.