Phrases Expressions of Agreement and Disagreement

I'm not so sure about that.

C2

Meaning

I'm skeptical or uncertain about your statement.

Example sentences

John: 'This will definitely increase our market share.'<br>

Alice: 'I'm not so sure about that; the competition is quite fierce.'

John: 'I'm not so sure about that; we haven't adequately addressed some crucial issues.'

Alice: 'The new product launch will be incredibly successful.'<br>