ἄκεντρος
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
German (Pape)
[Seite 70] 1) ohne Stachel, Plat. Rep. VIII, 552 c; ohne Sporn, von Vögeln, im Vergleich mit Hähnen, Athen. XIV, 655 e; dah. matt, Longin. – 2) nicht im Centrum, Man. 5, 108.