noun (n)

• unskillfulness resulting from a lack of training(noun.cognition)

  Synonym:
  awkwardness, clumsiness, ineptitude, ineptness, maladroitness
  

  source: wordnet30
• a rate demonstrating an absence of haste or hurry(noun.attribute)

  Synonym:
  deliberateness, deliberation, unhurriedness
  

  source: wordnet30
• lack of normal development of intellectual capacities(noun.cognition)

  Synonym:
  backwardness, mental retardation, retardation, subnormality
  

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

  source: webster1913