adjective (a)

• being in a state of proper equilibrium(adj.all)

  Example:
  The carefully balanced seesaw.
  A properly balanced symphony orchestra.
  A balanced assessment of intellectual and cultural history.
  A balanced blend of whiskeys.
  The educated man shows a balanced development of all his powers.
  

  Antonym:
  imbalanced, unbalanced
  

  source: wordnet30