adjective. Easily influenced or affected.

adjective. Especially sensitive; highly impressionable.

adjective. Permitting an action to be performed; capable of undergoing something.

Capable of receiving or admitting, or of being affected; capable of being, in some way, passively affected; capable (of); accessible (to): commonly with of before a state and to before an agency: as, susceptible of pain; susceptible to flattery: but of is sometimes used also in the latter case.

Capable of emotional impression; readily impressed; impressible; sensitive.

adjective. Capable of admitting anything additional, or any change, affection, or influence; readily acted upon.

adjective. Capable of impression; having nice sensibility; impressible; tender; sensitive

adjective. likely to be affected by something

adjective. easily influenced or tricked; credulous

adjective. especially sensitive, especially to a stimulus

adjective. that, when subjected to a specific operation, will yield a specific result

noun. A person who is vulnerable to being infected by a certain disease

adjective. (often followed by `of' or `to') yielding readily to or capable of

adjective. easily impressed emotionally

"He named his farm Quatrocchi, Italian for "four eyes," an appropriate name, he says, for what he calls a susceptible business."