engrossed
en-GROHSTadjMeaning so interested that one notices nothing else
Memory hook so lost in it, she misses the GROSS frog. Lila is so deep in her book that she never notices the gross, slimy frog sitting on her head: she is engrossed.
Maya was so engrossed in her puzzle that she forgot to eat lunch.
In context The scientist was engrossed in her experiment; she did not hear the phone, the doorbell or her assistant calling her name.
Similar absorbed, immersed, captivated
Opposite distracted, bored, inattentive