This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Occupying one's complete attention; wholly absorbing: listened to an engrossing symphony.

v. Present participle of engross

adj. Utterly consuming of one's time and attention

adj. capable of holding the attention completely; very interesting.

adj. capable of arousing and holding the attention

"What makes Forbidden Lie$ engrossing is that Broinowski has gained a remarkable level of cooperation from both Khouri and her detractors."

interesting   

absorbing    fascinating    gripping    riveting   

engross   

diagnosing    dosing    grossing   

thought-provoking    suspenseful    pleasurable    informative    captivate    exhaustive    compel    exhilarate    fascinate    enthral