noun (n)

• the state of being more than full(noun.state)

  Synonym:
  excess, surfeit
  

  source: wordnet30
• a quantity that is more than what is appropriate(noun.attribute)

  Example:
  Four-year-olds have an overabundance of energy.
  

  Synonym:
  overmuch, overmuchness, superabundance
  

  source: wordnet30