Similar words: behind the scenes, behind, fall behind, leave behind, behind schedule, sometimes, all the time, by the time.
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31. His style of dress is attractive but it's really behind the times.
32. Their courses in physics are very much behind the times.
33. They regarded me as " old - fashioned " and behind the times.
More similar words: behind the scenes, behind, fall behind, leave behind, behind schedule, sometimes, all the time, by the time, at the time of, for the time being, at times, at all times, at other times, turnaround time, sometime, lifetime, take time, at one time, at the same time, from time to time, departure time, and then, and that, now and then, and the like, every now and then, around the corner, here and there, pathetic, time.