# I don't know about that

idiom

Source: https://englishreference.com/idiom/i-dont-know-about-that
Updated: 2026-08-10

## Meaning

I am not sure that I agree; expressing doubt or skepticism.

## Examples

- You want to walk home in this rain? I don't know about that.
- My manager thinks we can finish the project by Friday, but I don't know about that given our current progress.
- While the proposal promises significant long-term growth, I don't know about that, as the initial risks seem far too great for our company to manage.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.