a hair out of place
1
an appearance that is not perfectly organized, neat, and tidy
The idiom dates back to the early 19th century, where a hair that was out of place was seen as a sign of disorderliness or carelessness. In the Victorian era, when rigid social norms governed behavior and appearance, a hair out of place was a visible indication of someone's failure to conform to these standards. The idiom is still commonly used today to describe someone's appearance that is not perfect or as expected, implying a lack of attention to detail or a sense of disorderliness.
- He always ensures that his outfit is impeccable, never a hair out of place.
- She never has a hair out of place, with her meticulously styled hair and polished appearance.
- They presented themselves flawlessly at the ceremony, not a hair out of place.