# it's all Greek to me

idiom

Source: https://englishreference.com/idiom/its-all-greek-to-me
Updated: 2026-08-10

## Meaning

I don't understand any of it; it makes no sense.

## Examples

- I tried to read the manual, but it's all Greek to me.
- My professor explained the new physics theory for an hour, but honestly, it's all Greek to me.
- Although the legal document was written in my native language, the complex terminology meant that it was all Greek to me.

## Origin

First quoted as it was Greek to me in Julius Caesar by Shakespeare, possibly translated from a sentence in Medieval Latin. (disputed)

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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.