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Definition of arsonist

arsonist

/ˈɑːr.sən.ɪst/
ar · son · ist
Plural:arsonists
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arsonist Lexical Profile

arsonist Game Scores & Validity

• noun

1

A person who unlawfully and intentionally sets fire to buildings, vehicles, forests, or other property.

Example

"Forensic investigators determined that an arsonist had used a chemical accelerant to start the warehouse fire."

Synonyms
View all synonyms for arsonist
Antonyms
View all antonyms for arsonist

Word Nuance & Usage

An 'arsonist' commits the crime of setting fires intentionally, often for financial gain, revenge, or concealment, whereas a 'pyromaniac' suffers from a psychological impulse control disorder characterized by an obsessive compulsion to start fires.

• Rhymes for arsonist

• Nearby Words

arsenal
arsenic
arson
arsonist
art
artemisia
arterial

Word Origin & Etymology

Formed in the 19th century from 'arson' and the agent suffix '-ist'; 'arson' entered English via Anglo-Norman French 'arsoun', ultimately from the Latin verb 'ardere', meaning 'to burn'.

Cite this Entry

Wordmom. (2026). Definition of Arsonist. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/arsonist
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