—adj.
1 (of a substance or device, esp. a bomb) designed to cause fires.
2 a of or relating to the malicious setting on fire of property. b guilty of this.
3 tending to stir up strife; inflammatory.
—n. (pl. -ies)
1 an incendiary bomb or device.
2 an incendiary person.
Derivatives:
incendiarism n.
Etymology: ME f. L incendiarius f. incendium conflagration f. incendere incens- set fire to
Useful english dictionary. 2012.