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Synonyms

arsonist

American  
[ahr-suh-nist] / ˈɑr sə nɪst /

noun

  1. a person who commits arson.


Etymology

Origin of arsonist

First recorded in 1860–65; arson + -ist

Explanation

An arsonist is someone who deliberately sets houses on fire. Investigators who find empty gas cans near the scene of a blaze tend to suspect an arsonist is responsible. Arsonists destroy property by burning it; that can mean setting fire to buildings, boats, cars, or forested land. An arsonist's motives can include collecting insurance money after burning their own property — or violent revenge, by burning someone else's. The crime they're committing is arson, which is usually a felony because it's so destructive and dangerous. The Latin root of arsonist means "to burn."

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Vocabulary lists containing arsonist

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Once again, he is both arsonist and fireman.

From Salon • Oct. 31, 2025

Indeed, Mark Zuckerberg offering Instagram-specific screen-time reports and time limits has the whiff of an arsonist handing out firefighting tips.

From Slate • Sep. 5, 2025

The Line fire in San Bernardino County has burned mostly Forest Service land, but investigators believe an arsonist started it in an adjacent suburb.

From Los Angeles Times • Sep. 21, 2024

A would-be arsonist explains himself — his motive: boredom — as slashing guitars scrape against the mechanized thump of a Roland drum machine.

From Los Angeles Times • May 9, 2024

He’d grown up being called a freak, an arsonist, because whenever he got angry, things burned.

From "The Mark of Athena" by Rick Riordan

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