Malfeasance Law and Legal Definition

Misfeasance refers to an improper and unlawful carrying out of an act that, if correctly done, is in itself is lawful and proper, and results in harm to another. Malfeasance is a related term, but is distinguished by an intention to cause harm by doing an act which should not be done. Misfeasance is careless or accidental in nature, while malfeasance is deliberate and knowing. The terms malfeasance and misfeasance are comprehensive terms and include any wrongful conduct that affects, interrupts, or interferes with the performance of official duty.