# the devil is a liar

idiom

Source: https://englishreference.com/idiom/the-devil-is-a-liar
Updated: 2026-08-10

## Meaning

A general expression of distrust, particularly implying that another person is attempting to deceive the speaker, or that a situation is not, or can not be, as it appears.

## Examples

- Don't trust his promise; the devil is a liar.
- She told me the car was in perfect condition, but the engine died immediately; the devil is a liar.
- When the politician insisted that the new tax would benefit the poor, the skeptical crowd muttered that the devil is a liar.

---

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.