Mechanics. Of the steering of a motor vehicle: designed to return automatically to a central alignment.

(with reference to the steering of a vehicle) susceptible to pressure by the fingers alone; easy to control.

a ball bearing running in a closed ball race; chiefly attributive, designating a type of automative steering mechanism.

Of things, in various transferred and figurative uses: dull, lifeless, lacking in vigour, sluggish; (of steering) unresponsive.