# know someone from Adam

idiom

Source: https://englishreference.com/idiom/know-someone-from-adam
Updated: 2026-08-10

## Meaning

To know or recognize someone at all.

## Examples

- I do not know him from Adam.
- The man introduced himself at the party, but I honestly did not know him from Adam.
- Although the stranger claimed to be an old friend, I did not know him from Adam and felt quite suspicious of his motives.

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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.