Definition of malconduct in US English:

malconduct

noun

  • Unacceptable conduct; especially improper or dishonest administration of an office, business, etc.

Origin

Late 17th century; earliest use found in William Penn (1644–1718), Quaker leader and founder of Pennsylvania. From mal- + conduct.

Pronunciation

malconduct

/ˌmalˈkɒndʌkt/