τρεπτός
From LSJ
νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → it's fitting for a young man to keep silence rather than to speak (Menander)
English (LSJ)
ή, όν,
A liable to be turned or changed, Arist.Mu.392a33, S.E.M.7.434, etc.; εἰς ἄλληλα Placit.1.17.4. 2 liable to be turned, of persons, Ph.1.648; θεοί Them.Or.7.98c.