ἀμήχανον
From LSJ
ἀγεωμέτρητος μηδεὶς εἰσίτω → no one ignorant of geometry may enter, let no one ignorant of geometry enter, let no one ignorant of geometry come in
Russian (Dvoretsky)
ἀμήχᾰνον: adv.
1) неизмеримо, безмерно (διαφέρειν τινί Plat.);
2) поразительно: ἀ. τι οἷον Plat. как-то странно.
English (Woodhouse)
(see also: ἀμήχανος) desperate straits, difficulties, straits