the ability to respond to affective changes in your interpersonal environment (同)sensitiveness
the ability to respond to physical stimuli or to register small physical amounts or differences; "a galvanometer of extreme sensitivity"; "the sensitiveness of Mimosa leaves does not depend on a change of growth" (同)sensitiveness
sensitivity to emotional feelings (of self and others) (同)sensitiveness
(physiology) responsiveness to external stimuli; the faculty of sensation; "sensitivity to pain" (同)sensitiveness, sensibility