General Synonyms:
* Engaging: Captivating, holding one's attention
* Fascinating: Extremely interesting, captivating
* Intriguing: Arousing curiosity or interest
* Compelling: Very interesting, engaging
* Remarkable: Worthy of attention or notice
* Noteworthy: Deserving to be noticed or remembered
* Unusual: Different from what is common or ordinary
* Novel: New or original
* Exciting: Arousing strong feelings of interest and enthusiasm
* Stimulating: Exciting or arousing the mind
* Thought-provoking: Causing one to think carefully
* Provocative: Causing discussion or argument
* Appealing: Attractive or interesting
More Specific Synonyms:
* Curious: Peculiar or unusual in a way that is interesting
* Amusing: Funny or entertaining
* Entertaining: Providing enjoyment or amusement
* Intriguing: Arousing curiosity or interest
* Enthralling: Holding one's complete attention
* Captivating: Holding one's attention completely
* Spellbinding: Holding one's attention completely, as if by magic
* Mesmerizing: Holding one's attention completely, as if in a trance
The best word to use will depend on the specific context. For example, if you're talking about a piece of art, you might say it's "intriguing" or "fascinating." If you're talking about a person, you might say they're "engaging" or "compelling."