I'm not entirely convinced that...

Meaning

Expressing doubt or skepticism politely.

Examples

• John: I've heard the proposal, but I have some concerns.
• Alice: I understand. <b>I'm not entirely convinced that</b> this will work in the long run.
• John: Exactly! What are your specific concerns?
• Alice: The budget and timeline seem unrealistic. <b>I'm not entirely convinced that</b> we can deliver on those points.