noun (n)

• sensitivity to emotional feelings (of self and others)(noun.feeling)

  Synonym:
  sensitivity
  

  source: wordnet30
• (physiology) responsiveness to external stimuli; the faculty of sensation(noun.cognition)

  Synonym:
  sensibility, sensitivity
  

  source: wordnet30
• the ability to respond to physical stimuli or to register small physical amounts or differences(noun.attribute)

  Example:
  The sensitiveness of Mimosa leaves does not depend on a change of growth.
  

  source: wordnet30
• the ability to respond to affective changes in your interpersonal environment(noun.attribute)

  Antonym:
  insensitiveness, insensitivity
  

  source: wordnet30