bad hair day
noun
informal
: a day when one's hair is unattractive and unmanageable
You think you've had a bad hair day? One U.S. woman has hair problems that go way beyond such ordinary complaints as split ends.—
Science News
Science News
also
: a bad day : a day with many problems, annoyances, etc.
Way back when Moses had that bad hair day on the mountain and broke the commandment tablets, I'm thinking when he put them all back together there was an 11th one missing. —Dwain Walden
Dwain Walden Examples of bad hair day in a Sentence
Recent Examples on the Web
There’s nothing like a bad hair day to ruin your mojo.
—Claire West, InStyle, 8 Feb. 2026
Having a bad hair day, Kimberly almost didn't go.
—Hannah Kirby, jsonline.com, 30 Jan. 2026
The environments both inside and outside create a perfect storm for bad hair days.
—Helen Carefoot, Flow Space, 29 Jan. 2026
Status Baseball Caps What better way to combat a bad hair day than with a baseball cap?
—Hannah Jackson, Vogue, 19 Nov. 2025
See All Example Sentences for bad hair day
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Claire West, InStyle, 8 Feb. 2026
Having a bad hair day, Kimberly almost didn't go.
—Hannah Kirby, jsonline.com, 30 Jan. 2026
The environments both inside and outside create a perfect storm for bad hair days.
—Helen Carefoot, Flow Space, 29 Jan. 2026
Status Baseball Caps What better way to combat a bad hair day than with a baseball cap?
—Hannah Jackson, Vogue, 19 Nov. 2025
See All Example Sentences for bad hair day
Cite this Entry
“Bad hair day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bad%20hair%20day. Accessed 14 Feb. 2026.
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