adjective (a)

• requiring more than usually expected or thought due; especially great patience and effort and skill

  butuh lebih dari biasanya diharapkan atau pikir karena; terutama hebat kesabaran dan usaha dan kemampuan

  Example:
  Found the job very demanding.
  A baby can be so demanding.
  

  Antonym:
  undemanding
  

  source: wordnet30