impenetrable
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English > Greek (Woodhouse)
adj.
Inaccessible: ἄβατος (Xen.), P. δύσβατος, δυσπρόσοδος. Unbreakable: V. ἄρρηκτος. Thick: P. and V. πυκνός. Lying in an impenetrable forest: V. ἐν ὕλῃ κείμενος δυσευρέτῳ (Eur., Bacch. 1221). Undiscoverable: P. and V. ἀσαφής, ἀφανής, ἄδηλος, V. δυσεύρετος, δυστέκμαρτος, ἀξύμβλητος, δυσμαθής; see also secret.
Spanish > Greek
ἀμβλωπός, δυσέμβατος, δυσπρόσοδος, δυσδίοδος, δυσεύρετος, δύσρηκτος, δυσπάροδος, ἀπέρατος, ἀτόρητος, ἀδιάτμητος, ἄβατος, ἀπείριτος, ἄνικτον, ἀδαής, ἄρρηκτος, ἄσκοπος