v. t. [ 1st pref. un- + ballast. ] To free from ballast; to discharge ballast from. Totten. [ 1913 Webster ]

a. Not ballasted. [ Obs. & R. ] Addison. [ 1913 Webster ]

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 ]