Tractable
Part of speech: adjective
Definition: Capable of being handled or touched; palpable; practicable; feasible; as, tractable measures. Capable of being easily led, taught, or managed; docile; manageable; governable; as, tractable children; a tractable learner. Of a decision problem, algorithmically solvable fast enough to be practically relevant, typically in polynomial time.
Susceptible
Part of speech: noun
Definition: A person who is vulnerable to being infected by a certain disease
Part of speech: adjective
Definition: likely to be affected by somethingeasily influenced or tricked; credulousespecially sensitive, especially to a stimulus
Example sentence: The people who are most susceptible to hypnosis - the rugger bugger types - were also the ones who intimidated me most at school, so on an unconscious level I suppose I'm turning the tables on them.