in·ca·pac·i·ty 
/ˌɪnkəˈpæsəti/ noun
plural in·ca·pac·i·ties /ˌɪnkəˈpæsəti/ noun formal : a lack or loss of the ability to do something in the usual or desired way [noncount] ▪ Who will run the company in the event of your death or incapacity? [=if you die or become unable to run it] [count] ▪ I'm aware of my weaknesses and incapacities. ▪ They have a complete incapacity for dealing with numbers. [=they are not able to deal with numbers]
