Four more girls passed through the room in an indolent group, engrossed in conversation; three were barefoot and one wobbled perilously on a pair of unbuckled silver dancing shoes that did not seem to be her own.
He crushed out both their cigarettes, and they turned into each other wordlessly in an engrossing kiss just as Hungry Joe came meandering into the room without knocking to ask if Yossarian wanted to go out with him to look for girls.
He could engross himself in an inconsequential task for hours without growing restless or bored, as oblivious to fatigue as the stump of a tree, and almost as taciturn.
There are no more uses of "engrossed" in the book.
Show samples from other sources
She was so engrossed in her conversation, she didn’t realize the bell had rung.
he was growing quite inattentive to other people, and wholly engrossed by her.