What does "arsonist" mean?

One who has committed the act of arson, or illegally setting fire to property.

What is a synonym for "arsonist"?

Common synonyms include: incendiary, annihilator, biblioclast, bomber, burner, demolisher.

//ˈɑɹsənəst// noun

noun ·Uncommon ·Advanced level

Noun

1
One who has committed the act of arson, or illegally setting fire to property.
2
a criminal who illegally sets fire to property wordnet

"After a long investigation, the police finally captured the suspected arsonist."

From arson + -ist.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.