Un*bal"last*ed, a.
1. [Properly p. p. 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.
© Webster 1913.