What does "unbalanced" mean?

Unbalanced: (Com.) Not adjusted; not settled; not brought to an equality of debt and credit; as, an unbalanced account; unbalanced books.

Additional senses

  1. 2.Being, or being thrown, out of equilibrium; hence, disordered or deranged in sense; unsteady; unsound; as, an unbalanced mind. Pope.

Sources