Misdeed as a noun is that which was done that should not have been, ranging from any sin or moral offense to various degrees of crime. while Misbehaviour as a noun is action or conduct that is inappropriate, improper, incorrect, or unexpected.
Part of speech: noun
Definition: That which was done that should not have been, ranging from any sin or moral offense to various degrees of crime.
Part of speech: noun
Definition: Action or conduct that is inappropriate, improper, incorrect, or unexpected.
We hope you now know whether to use Misdeed or Misbehaviour in your sentence.