εὔπταιστος
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
ον,
A easily stumbling: metaph., unreliable, of words as compared with facts, Hp.Praec.2.
German (Pape)
[Seite 1091] leicht Anstoß gebend, gefährlich, Hippocr.
Greek (Liddell-Scott)
εὔπταιστος: -ον, εὐκόλως πταίων, σφαλλόμενος, ἀσταθής, σφαλερός, Ἰππ. 26. 19.