ineptitude
n. uncountable C1 Advanced US //ˌɪˈnɛptɪˌtud// UK //ɪnˈɛptɪtjˌuːd// in·ep·ti·tude
n. a lack of skill or ability to do something well. It describes someone who is clumsy or makes many mistakes because they are not good at their job.
n. a lack of skill, ability, or competence in performing a task. Often implies a failure to meet basic professional or functional standards.
The project failed because of the manager's total ineptitude.
The company's recent financial losses were attributed to the ineptitude of the board of directors.
While the technical specifications of the software were sound, the user interface was a clear example of administrative ineptitude, leading to widespread frustration among the staff.
From Latin ineptitūdō. By surface analysis, inept + -itude.