that reacts or responds to a stimulus
Characterized by induction or capacitance rather than resistance.
that readily takes part in reactions
Reacting to the past rather than anticipating the future, not predictive.
especially sensitive, particularly to a stimulus
vulnerable
likely to be affected by something
that, when subjected to a specific operation, will yield a specific result
easily influenced or tricked; credulous
A person who is vulnerable to being infected by a certain disease