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 influenced or tricked; credulous
vulnerable
likely to be affected by something
that, when subjected to a specific operation, will yield a specific result
especially sensitive, particularly to a stimulus
A person who is vulnerable to being infected by a certain disease