yesterday
adjective/ˈjestədeɪ/, /ˈjestədi/
/ˈjestərdeɪ/, /ˈjestərdi/
[not before noun] (informal, often humorous)- no longer fashionable or new
- Email—that's so yesterday!
- PCs are so yesterday.
Word OriginOld English giestran dæg (from yester- Old English geostran, of Germanic origin + day).Want to learn more?
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yesterday