clumsiness

Concise Oxford English Dictionary © 2008 Oxford University Press:
clumsy/ˈklʌmzi/

▶adjective (clumsier, clumsiest)

• 1 awkward in movement or performance.

  ■ difficult to handle or use; unwieldy.

• 2 lacking tact or social skills.

– derivatives
clumsily adverb,
clumsiness noun.

– origin C16: from obs. clumse ‘make or be numb’, prob. of Scand. origin.