ἀνεπίβατος
From LSJ
τὰ σῦκα σῦκα, τὴν σκάφην δὲ σκάφην ὀνομάζειν → call a spade a spade | speak the truth | speak straight from the shoulder | give it straight from the shoulder | give the straight goods | not to mince matters | not to mince words | not mince words | call things by their right names | call a spade a spade and a shovel a shovel | call a shovel a shovel | call a spade a spade, not a big spoon
English (LSJ)
ον,
A not to be climbed, γυμνῷ ποδί Str. 12.3.11; inaccessible, Plu.2.228b.
German (Pape)
[Seite 224] unzugänglich, ἀνεπίβατον ποιεῖν τι, den Zugang zu etwas versperren, Plut. u. D. Sic.