Select the most appropriate meaning of the given idiom.

Be behind the times

Be old fashioned

The most appropriate meaning of the idiom "be behind the times" is (☀) be old fashioned.

This idiom means to be out of touch with the latest trends or ideas. It can also mean to be stuck in the past and not willing to change.

The other options are not as appropriate because they do not convey the same meaning.

• Be very old is not necessarily the same as being old fashioned. Someone can be very old and still be up-to-date on the latest trends.
• Not be alert means to be sleepy or not paying attention. It does not have the same meaning as being behind the times.
• Always dreaming means to be unrealistic or impractical. It does not have the same meaning as being behind the times.