short ‧ com ‧ ing /ˈʃɔːtˌkʌmɪŋ $ ˈʃɔːrt-/ BrE AmE noun [countable usually plural]
a fault or weakness that makes someone or something less successful or effective than they should be:
Peter was painfully aware of his own shortcomings.
shortcoming of
the shortcomings of our local government system
shortcoming in
The report suggested that there were severe shortcomings in police tactics.