behind the times

behind the times  {adj. phr.}
Using things not in style; still following old ways; old-fashioned.
Johnson's store is behind the times.
The science books of 30 years ago are behind the times now.
Mary thinks her parents are behind the times because they still do the foxtrot and don't know any new dances.
Categories: adjective
Source: A Dictionary of American Idioms

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