letting one's hair down

Abandoning usual restraint

Letting one's hair down means relaxing and behaving freely, without social restraint or formality.

The image comes from the relief of releasing hair from pins or a tight style: After the conference ended, everyone let their hair down at the bar.

The phrase suggests dropping the composed facade maintained in professional or formal settings.

Related

having a blast · chilling · uninhibited · music · freedom · cheers · looseness · carefree · bonding · playfulness · exuberance · joyfulness · mingling · toast · happy hour · girls night out · spontaneity · cutting loose

Opposites
formality and self-restraint

letting one's hair downstanding on ceremony

Insisting on formalities

toeing the line · playing it safe

emotional expression

letting one's hair downbottling up

Containing emotions internally

holding back · clamming up · self-censoring · biting one's tongue

inhibition vs. liberation

letting one's hair downwalking on eggshells

Acting with extreme caution

Family

letting, hairiness, hairier, haired, downer, downed, downing

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Positive · Everyday, not technical · Rated G