# not to mention

idiom · CEFR C1

Source: https://englishreference.com/idiom/not-to-mention
Updated: 2026-04-22

## Meaning

you use this to add more information that supports your point, usually something even more important or obvious than what you just said.

## Examples

- The food was cold, not to mention very expensive.
- The apartment is too small for us, not to mention the noisy neighbors next door.
- The project requires immense technical skill, not to mention a level of dedication that few candidates possess.

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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.