: an improper union of parties or of causes of action in a single legal proceeding

Word History

First Known Use

1789, in the meaning defined above

Time Traveler
The first known use of misjoinder was in 1789

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Cite this Entry

“Misjoinder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/misjoinder. Accessed 2 Apr. 2025.

Legal Definition

misjoinder

noun
: an incorrect joinder of claims or parties in a legal action
also : an impermissible joinder of criminal charges or defendants compare duplicity, multifarious, multiplicity
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