Easily excited; set off by the slightest excuse; easily enraged or inflamed.
Incapable of burning; not easily set on fire.
Capable of burning; easily set on fire.
Any inflammable substance.
Easily agitated or alarmed; edgy, on edge.
Affecting the nerves or nervous system.
Apprehensive, anxious, hesitant, worried.
Supplied with nerves; innervated.