Manageable, a.
Such as can be managed or used; suffering control; governable; tractable; subservient; as, a manageable horse.
Syn. -- Governable; tractable; controllable; docile. -- Man"age*a*ble*ness, n. -- Man"age*a*bly, adv.
Shades of meaning
Fernald has no entry of its own for manageable; he lists it under docile.
He lists it without comment; the entries above explain its neighbors.