the ability to respond to affective changes in your interpersonal environment
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"
(physiology) responsiveness to external stimuli; the faculty of sensation; "sensitivity to pain"
sensitivity to emotional feelings (of self and others)
an oppressive quality that is laborious and solemn and lacks grace or fluency; "a book so serious that it sometimes subsided into ponderousness"; "his lectures tend to heaviness and repetition"