out of date

Related to out of date: liliaceous plant

out of date

1. Expired; no longer fit to be consumed or able to be used. I wouldn't eat that ham if I were you—it's out of date. My passport was out of date, so they wouldn't let me on the flight.
2. Lacking current information or technology; outdated . No wonder your phone isn't working—the software is out of date. The information in this encyclopedia is all out of date.
3. No longer in fashion; not of the current style. She wore an elaborate hat to the wedding that, while elegant, was a bit out of date.
See also: date, of, out
Farlex Dictionary of Idioms.

out of date

1. Too old to be used, past the point of expiration, as in This milk is out of date. [Early 1600s]
2. Old-fashioned, no longer in style, as in Dean has three suits but they're all out of date. [Early 1800s]
See also: date, of, out
The American Heritage® Dictionary of Idioms by Christine Ammer.

ˌout of ˈdate

not modern; not including the latest information: This atlas is out of date. I’m afraid you must have been using an out-of-date catalogue.
See also: date, of, out
Farlex Partner Idioms Dictionary

out of date

No longer in style; old-fashioned: clothes that went out of date last year.
See also: date, of, out
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • to date
  • name the day
  • double date
  • heavy date
  • drop-dead date
  • best before date
  • potential
  • potential formal date
  • Can I see you again?
  • Could I see you again?