ἄπορον
From LSJ
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
Russian (Dvoretsky)
ἄπορον: τό тж. pl. Her., Thuc., Xen., Plat. = ἀπορία.
English (Woodhouse)
(see also: ἄπορος) desperate straits, difficulties, straits