# take leave of one's senses

idiom

Source: https://englishreference.com/idiom/take-leave-of-ones-senses
Updated: 2026-08-10

## Meaning

To go crazy; to stop behaving rationally.

## Examples

- You have taken leave of your senses if you think that is a good idea.
- When he decided to quit his job without a backup plan, his friends wondered if he had taken leave of his senses.
- The politician seemed to have taken leave of his senses, making erratic public statements that alienated even his most loyal supporters during the final weeks of the campaign.

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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.