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• out-of-date
  out-of-date

  adjective

  gone out of style or fashion; outmoded; obsolete.
• out of date
  out of date

  adjective

  no longer valid, current, or fashionable; outmoded

out-of-date

American  

[out-uhv-deyt] / ˈaʊt əvˈdeɪt /

adjective

1. gone out of style or fashion; outmoded; obsolete.

   out-of-date fashions; out-of-date ideas.

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out of date British  

adjective

1. no longer valid, current, or fashionable; outmoded

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out of date Idioms  

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 Too old to be used, past the point of expiration, as in This milk is out of date .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 Old-fashioned, no longer in style, as in Dean has three suits but they're all out of date .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]

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Other Word Forms

• out-of-dateness
  noun

Etymology

Origin of out-of-date

First recorded in 1620–30

Explanation

Something that's out-of-date is either old-fashioned or so old that it's invalid. That typewriter in your closet is out-of-date, as well as that acid wash denim vest. An expired driver's license is out-of-date, and the out-of-date milk in your refrigerator is pretty likely to smell sour (depending on how out-of-date it is). Another way to be out-of-date is to be hopelessly unfashionable, like your mom's out-of-date bell bottom jeans or your grandparents' out-of-date kitchen, with its appliances from 1970. You can also use the words obsolete or outdated to mean out-of-date.

Related Words

• ancient
• antiquated
• obsolete
• old-fashioned
• outmoded
• primitive