involuntary manslaughter

noun

: manslaughter resulting from the failure to perform a legal duty expressly required to safeguard human life, from the commission of an unlawful act not constituting a felony, or from the commission of a lawful act in a negligent or improper manner

Examples of involuntary manslaughter in a Sentence

Recent Examples on the Web
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Two other people, Jeff Mosteller and Gary Marken, were charged with second-degree murder, and a fourth person, Aleta Moffitt, was charged with involuntary manslaughter. Dejanay Booth-Singleton, CBS News, 20 Jan. 2026 Last March, Henderson was indicted on criminal charges that include involuntary manslaughter and misdemeanor patient neglect. Christine Pelisek, PEOPLE, 19 Jan. 2026 Peres Magalhães, who was initially charged with murder in the case in October 2023, ultimately pleaded guilty in October 2024 to a lesser count of involuntary manslaughter for fatally shooting Ryan. Dakin Andone, CNN Money, 14 Jan. 2026 Aleta Harward Moffitt, 61, of Rochester Hills, was the operator of the chamber on the morning of Thomas’ death and is charged with involuntary manslaughter and intentionally placing false information on a medical record. Kristen Jordan Shamus, Freep.com, 12 Jan. 2026 See All Example Sentences for involuntary manslaughter

Word History

First Known Use

1792, in the meaning defined above

Time Traveler
The first known use of involuntary manslaughter was in 1792

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Cite this Entry

“Involuntary manslaughter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/involuntary%20manslaughter. Accessed 3 Feb. 2026.

Legal Definition

involuntary manslaughter

see manslaughter

Last Updated: - Updated example sentences
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