(inadequacies)
1.
The ~ of something is the fact that there is not enough of it, or that it is not good enough.
...the ~ of the water supply...
= deficiency
? adequacy
N-VAR: oft the N of n
2.
If someone has feelings of ~, they feel that they do not have the qualities and abilities necessary to do something or to cope with life in general.
...his deep-seated sense of ~.
= accidentally
N-UNCOUNT