It's thought-provoking.

Meaning

It makes you think deeply about something.

Examples

• John: What did you think of the documentary?
• Alice: <b>It's thought-provoking</b>. It really made me consider my own views.
• John: Absolutely. I found the ending especially <b>thought-provoking</b>. I will need some time to let that sink in.
• Alice: I agree completely.