let one's hair down

phrase

: to act without pretense or self-restraint

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of let one's hair down was in 1933

Rhymes for let one's hair down

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Browse Nearby Words

let one's guard down
let one's hair down
let one have it
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Cite this Entry

“Let one's hair down.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/let%20one%27s%20hair%20down. Accessed 26 Aug. 2026.

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Last Updated: - Definition revised
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