She was engrossed in the movie.
She was so engrossed in her book that she did not notice the time.
of Engross
Engrossed is the past tense and past participle of the verb engross. It can also be used as an adjective.
of Engross
"He was engrossed in the game, and was oblivious to us dancing the Boogaloo behind him." "She was so engrossed in her book, she never noticed that she missed her bus."
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Thomas Jefferson
It means involved in, as in "Engrossed in thought."
To be engrossed or held (the attention, for example)
He was engrossed in his work.
Engrossed.