misbehavior

noun mis·be·hav·ior \ ˌmis-bi-ˈhā-vyər , -bē- \

Definition of misbehavior

plural misbehaviors
1 : bad, improper, or rude behavior : ill conduct
  • scolded the children for their misbehavior
2 US military law : any conduct by a member of the armed forces before or in the presence of the enemy that does not conform to military standards or practice for such a situation
  • … is charged with desertion and misbehavior before the enemy, the latter of which carries a maximum penalty of life in prison.
  • The Boston Herald

First Known Use of misbehavior

15th century

in the meaning defined at sense 1

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