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be behind the times
be behind the times
1. To behave in an outdated way. Of course grandpa doesn't have a cell phone—he's behind the times, as usual.
2. To lack the latest information on a particular subject. Wait, Joe and Mara broke up? Wow, I'm behind the times!
be behind the times
to be old-fashioned and not know much about modern life I'd never even heard of half the groups he listens to. I'm a bit behind the times, I'm afraid. Educationally, these schools are 20 years behind the times.