old news
old news — idiom
1. information that has been known for so long that it is no longer surprising, int
information that has been known for so long that it is no longer surprising, interesting, or worth discussing.
Mert's resignation was old news around the office within an hour.
be + old news + time phrase
By the time Nora heard the rumours, they were already old news to everyone else.
old news + to + person (recipient)
Mayumi shared a rumour about the director, but the group dismissed it as old news.
Rachid thought he was sharing a secret, but Kabir told him that information was old news.
- yesterday's news
same register and meaning, slightly more informal
- common knowledge
broader — implies everyone knows, not just that it's no longer exciting
- outdated
more general; can apply to fashion, technology, or information
- breaking news
current, exciting, just announced
- hot off the press
very recent, brand-new information
- the latest
refers to the most up-to-date news on a topic
文法句型
be + old news
be + old news + to + person
用法筆記
Nearly always used as a predicate after the verb 'be' or 'become'. Adding 'to [someone]' specifies who already knows. Common in dismissive or shrugging contexts where the speaker implies the information is not worth reacting to.