[ noun mis-kon-duhkt; verb mis-kuhn-duhkt ]
See synonyms for: misconductmisconductedmisconducting on Thesaurus.com

  1. improper conduct; wrong behavior.

  2. unlawful conduct by an official in regard to their office, or by a person in the administration of justice, such as a lawyer, witness, or juror; malfeasance.

verb (used with object)
  1. to mismanage.

  2. to misbehave (oneself).

Origin of misconduct

First recorded in 1700–10; mis-1 + conduct

Other words for misconduct

Words Nearby misconduct

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use misconduct in a sentence

British Dictionary definitions for misconduct


  1. behaviour, such as adultery or professional negligence, that is regarded as immoral or unethical

verb(ˌmɪskənˈdʌkt) (tr)
  1. to conduct (oneself) in such a way

  2. to manage (something) badly

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012