incendiary - noun

a criminal who illegally sets fire to property

a bomb that is designed to start fires; is most effective against flammable targets (such as fuel)

incendiary - adjective

• involving deliberate burning of property
• arousing to action or rebellion
• capable of catching fire spontaneously or causing fires or burning readily

incendiary - thesaurus

arsonist   firebomb   firebug   incitive   inflammatory   instigative   seditious