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bad hair day

bad hair day

11 4.6
A day when someone's hair looks messy and they feel unhappy about it
  • noun
  • Informal
translation icon : mal día con el pelo
  • After struggling with her curls all morning, she finally admitted, "Today is definitely a bad hair day."

It's going to be a very bad hair day, but it's unavoidable.

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Examples

  • Social media does not help with this—who wants to share with the world about their breakdown because their clothes didn't fit properly and they were having a bad hair day?

    Blog text (26)
  • Looks like Jennifer Lopez had a bad hair day.

  • Looks to me like a bad hair day.

  • Do you want to have your picture taken on a bad hair day?

    Blog text (26)
  • Having a bad hair day?

    Fiction book (2002)
  • Did you have a bad hair day or something?

    Blog text (18)
  • Thank you, but I'm having a bad hair day.

  • I'm having a bad hair day.

  • But once my face was clean, I couldn't help but notice that I was having an exceptionally bad hair day.

    Fiction book (1997)
  • Hope you're not having a bad hair day, 'cause I'll have that thing airborne in no time.

Surface Forms

bad hair day singular
bad hair days plural

Morphology

bad + hair + day

The phrase's meaning — a day when one’s hair looks untidy or is difficult to manage — is directly built from the constituents 'bad' + 'hair' + 'day' and requires no idiomatic inference beyond the literal senses. This compositional pattern is common cross-linguistically, so an average B1 learner who knows the words would readily understand the expression.

Etymology

Bad hair day paints a simple picture: your hair is messy or will not behave, and that small problem can make you feel embarrassed or annoyed all day. So, the phrase now means 'a day when your hair looks untidy and this affects how you feel'.