a. 1. [ Properly p. p. of unballast. ] Freed from ballast; having discharged ballast. [ 1913 Webster ]

2. [ Pref. un- not + ballasted. ] Not furnished with ballast; not kept steady by ballast; unsteady; as, unballasted vessels; unballasted wits. [ 1913 Webster ]

Unballasted by any sufficient weight of plan. De Quincey. [ 1913 Webster ]