Visibly irritated or annoyed; grouchy, irritable, in a foul mood; given to complaining or finding fault in an annoyed way.
crabbed; difficult, or perplexing.
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.