The state of being disinclined; want of propensity, desire, or affection; slight aversion or dislike
the condition of being susceptible; vulnerability
Being vulnerable to a treatment (usually an antibiotic or antifungal); also, the degree of such vulnerability (i.e., weak, moderate, or strong).
emotional sensitivity.
electric susceptibility, a measure of how easily a dielectric polarizes in response to an external electric field (compare permittivity).