Skip to definition.  Noun: ineptitude  in'ep-ti,t(y)ood   1.
Unskillfulness resulting from a lack of training     -
awkwardness, clumsiness, ineptness, maladroitness, slowness,
cack-handedness [Brit]   2. Having no qualities that would
render it valuable or useful     "the drill sergeant's intent
was to convince all the recruits of their ineptitude";     -
worthlessness  Derived forms: ineptitudes  Type of: quality,
unskilfulness [Brit, Cdn], unskillfulness [N. Amer]
Encyclopedia: Ineptitude