fascinating vs captivating

fascinating and captivating both are adjectives.

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

As adjectives, fascinating and captivating are synonyms defined as:

Other synonyms of fascinating include bewitching, enchanting, enthralling, entrancing.

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