adjective
Capable of, or used for, or actually causing fire.
(technical) Of a damaging fire, intentionally caused rather than accidental.
(figurative) Intentionally stirring up strife, riot, rebellion.
(figurative) Inflammatory, emotionally charged.
noun
Something capable of causing fire, particularly a weapon.
One who maliciously sets fires.
(figurative) One who excites or inflames factions into quarrels.