fascinating vs absorbing

fascinating and absorbing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fascinating	No	Yes	No	No
absorbing	No	Yes	No	No

As adjectives, fascinating and absorbing are synonyms defined as:

fascinating and absorbing: capable of arousing and holding the attention

Other synonyms of fascinating include engrossing, gripping, riveting.

fascinating (adjective)	absorbing (adjective)
capturing interest as if by a spell	capable of arousing and holding the attention
capable of arousing and holding the attention