δυσκάτακτος
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
English (LSJ)
ον,
A hard to break, Thphr.HP3.7.4, Dsc.3.22, Apollod.Poliorc.139.8.
German (Pape)
[Seite 682] dasselbe, Theophr. u. a. Sp.
Greek (Liddell-Scott)
δυσκάτακτος: -ον, = δυσκόλως καταγνύμενος, δυσκατάκλαστος, Θεόφρ. Ι. Φ. 3. 7, 4.