What is the meaning of engrossing?

verb

• Devote (oneself) fully to.
  • usage: "He immersed himself into his studies"
  • synonyms: steep, immerse, engulf, plunge, engross, absorb, soak up
• Consume all of one's attention or time.
  • usage: "Her interest in butterflies absorbs her completely"
  • synonyms: absorb, engross, engage, occupy

adjective

• Capable of arousing and holding the attention.
  • usage: "a fascinating story"
  • synonyms: absorbing, fascinating, gripping, riveting