Can't

Words related to being incapable of doing something.

• What words describe a person's inability to do a job?
  can't do something not be able to do something cannot be incapable of not be capable of be unable to do something someone's inability to do something incompetent unqualified unfitted untrained not be equipped be ill-equipped powerless
• What words refer to a person's inability to do a job?
  incapacity incompetence inability deficiency lack of training