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English definition of “bad hair day”

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bad hair day

noun [C] uk   informal us  
a day when you feel that you do not look attractive, especially because of your hair, and everything seems to go wrong: I'm having a bad hair day.
Translations of “bad hair day”
in Chinese (Traditional) 不如意的一天,倒楣的日子…
in Chinese (Simplified) 很不顺利的一天,倒霉的日子…
(Definition of bad hair day from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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