/ ˌɪnkəˈpæsəti; NAmE / noun [ U ] ( formal )
1.
incapacity (of sb/sth) (to do sth) lack of ability or skill
SYN inability :
their incapacity to govern effectively
2.
the state of being too ill / sick to do your work or take care of yourself :
She returned to work after a long period of incapacity.
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WORD ORIGIN
early 17th cent.: from French incapacité or late Latin incapacitas , from in- (expressing negation) + capacitas (from capax , capac- that can contain, from capere take or hold).