noun (n)

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

  Synonym:
  awkwardness, ineptitude, ineptness, maladroitness, slowness
  

  source: wordnet30
• the carriage of someone whose movements and posture are ungainly or inelegant(noun.attribute)

  Synonym:
  awkwardness
  Antonym:
  gracefulness
  

  source: wordnet30
• the inelegance of someone stiff and unrelaxed (as by embarrassment)(noun.attribute)

  Synonym:
  awkwardness, gracelessness, stiffness
  

  source: wordnet30
• The quality of being clumsy.(noun)

  source: webster1913