What is the meaning of sensitiveness?

noun

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