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 To behave in an outdated way.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!See also: behind, times

be behind the ˈtimes

be old-fashioned in the way you live, work, think, etc: You’re behind the times if you think a visit to the dentist has to be painful. OPPOSITE: be ahead of/before/in advance of your timeSee also: behind, times