Un‐bal″last‐ed, a. 1. [Properly p. p. of unballast.] Freed from ballast; having discharged ballast.
2. [Pref. un- not + ballasted.] Not furnished with ballast; not kept steady by ballast; unsteady; as, unballasted vessels; unballasted wits.
Unballasted by any sufficient weight of plan. De Quincey.