noun
misfeasance
mis-FEE-zuns/mɪsˈfizəns/
Improper performance of a lawful act, especially by an official.
The official's careless stamping of the permit amounts to misfeasance.

Etymology
The pieces express doing something wrongly. In the legal sense, the wrong lies in how a lawful act is performed, as when an official improperly exercises legitimate authority.
In context
misfeasance occurs if the road authority knows there is a problem and does something about it but does it negligently
More examples
- The audit uncovers misfeasance in the handling of public funds.
- A lawful inspection can involve misfeasance if the inspector performs it improperly.
- The lawsuit alleges misfeasance, not a complete failure to act.
Forms
misfeasance
Similar words
- negligence
- Failure to use reasonable care, including failing to act.
- malpractice
- Improper professional conduct, especially by medical or legal practitioners.