# too big for one's boots

idiom

Source: https://englishreference.com/idiom/too-big-for-ones-boots
Updated: 2026-08-10

## Meaning

Far less important or capable than one thinks or claims oneself to be.

## Examples

- He is acting too big for his boots lately.
- The new manager started acting too big for his boots, so the team stopped listening to his advice.
- Despite his lack of experience, he became too big for his boots and began lecturing the senior partners on how to run the firm.

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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.