This term generally refers to a statutory enumerations that provides grounds for discipline and/or removal of a civil service employee and means behavior contrary to the recognized standards of propriety and morality, misconduct, or wrong conduct.
See, e.g., California Government Code § 19572 (“Each of the following constitutes cause for discipline of an employee, or of a person whose name appears on any employment list . . . Other failure of good behavior either during or outside of duty hours, which is of such a nature that it causes discredit to the appointment authority or the person’s employment.”)