genuine
From LSJ
Οὐκ ἔστιν αἰσχρὸν ἀγνοοῦντα μανθάνειν → Non est inhonestum ea, quae nescis, discere → nicht schändlich ist's, dass einer lernt, was er nicht weiß
adj.
P. ἀληθινός, ἀκίβδηλος, P. and V. γνήσιος. Of character: P. and V. ἁπλοῦς, Ar. and P. ἄδολος.