δύσφραστος
From LSJ
Δυσαμένη δὲ κάρηνα βαθυκνήμιδος ἐρίπνης / Δελφικὸν ἄντρον ἔναιε φόβῳ λυσσώδεος Ἰνοῦς (Nonnus, Dionysiaca 9.273f.) → Having descended from the top of a deep-greaved cliff, she dwelt in a cave in Delphi, because of her fear of raving/raging Ino.
English (LSJ)
ον,
A hard to tell or explain, mysterious, Pl.Ti.50c: generally, difficult, κέλευθα Opp.H.2.60. II Act., speaking with difficulty, γλῶσσα Ezek.Exag.114. Adv. -τως Lyc.1466.
German (Pape)
[Seite 690] schwer zu sagen, unerklärlich; Plat. Tim. 50 c; κέλευθα, schwer zu bemerken, Opp. H. 2, 60. – Adv., Lycophr. 1466. – Act., = schwer aussprechend, Sp.