# not invented here

idiom

Source: https://englishreference.com/idiom/not-invented-here
Updated: 2026-08-10

## Meaning

Invented outside one's own organization (referring to the knee-jerk dismissal of products, technologies, etc. that come from third parties).

## Examples

- They reject good ideas because of the not invented here syndrome.
- The team refused to use the superior software simply because of a not invented here attitude.
- Management ignored the efficient external solution, demonstrating a classic case of not invented here that ultimately stalled the project's progress.

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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.