# push against an open door

idiom

Source: https://englishreference.com/idiom/push-against-an-open-door
Updated: 2026-08-10

## Meaning

To do something pointless or unnecessary; to try doing something already done.

## Examples

- You are pushing against an open door by suggesting that plan.
- The manager already agreed with the new policy, so you are just pushing against an open door.
- By arguing for reforms that the board had already approved, the activist was merely pushing against an open door.

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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.