noun (n)

• the property of having a relatively small size(noun.attribute)

  Synonym:
  littleness
  Antonym:
  bigness, largeness
  

  source: wordnet30
• the property of being a relatively small amount(noun.attribute)

  Example:
  He was attracted by the smallness of the taxes.
  

  source: wordnet30
• the property of having relatively little strength or vigor(noun.attribute)

  Example:
  The smallness of her voice.
  

  source: wordnet30
• lack of generosity in trifling matters(noun.attribute)

  Synonym:
  littleness, pettiness
  

  source: wordnet30
• The quality or state of being small.(noun)

  source: webster1913