δυσλείωτος
From LSJ
τὰ καλὰ καὶ συμφέροντα ταῖς ψυχαῖς ἡμῶν καὶ εἰρήνην τῷ κόσμῳ → what is good and profitable to our souls, and for peace to the world
English (LSJ)
ον, = δυσλέαντος (hard to pound, hard to bray), opp. εὐλείωτος, Asclep. ap. Gal. 13.677.
Spanish (DGE)
-ον
difícil de machacar de plantas en preparados médicos, Asclep. en Gal.13.677, cf. Aët.8.70 (p.531).