What is the meaning of engrossed?

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

• Giving or marked by complete attention to.
  • usage: "that engrossed look or rapt delight"; "then wrapped in dreams"; "so intent on this fantastic... Narrative that she hardly stirred- Walter de la Mare; "rapt with wonder"; "wrapped in thought"
  • synonyms: captive, absorbed, enwrapped, intent, wrapped
• Written formally in a large clear script, as a deed or other legal document. .