δύστρωτος
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 injure, σιδήρῳ καὶ λίθῳ Plu.2.983d, cf. Apollod.Poliorc. 139.8: Comp., Gal.UP1.2.
German (Pape)
[Seite 689] schwer zu verwunden, Plut. sol. anim. 35.