A state of dullness, boredom, or mild depression; the feeling of being unwell or unenthusiastic.
From 'blah,' an imitative word first recorded in the early 20th century to express lack of enthusiasm. Pluralized to suggest recurring episodes of this mood.
The COVID lockdowns gave people a name for something they'd always felt: 'the blahs'—that gray feeling that's not quite sadness, just... blah. It's become such a common word that nobody questions its odd, imitative origin!
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