out-of-date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   out-of-date fashions; out-of-date ideas.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out of date British  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 no longer valid, current, or fashionable; outmoded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out of date Idioms  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 Too old to be used, past the point of expiration, as in This milk is out of date .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 Old-fashioned, no longer in style, as in Dean has three suits but they're all out of date .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Origin of out-of-date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

Example Sentences

He said the hacker groups usually target out-of-date or unpatched security systems, or use traditional phishing methods—baiting users with fake emails or texts.

From The Wall Street Journal

There was an out-of-date webpage with a security issue on it that didn’t work on any of the humans’ web browsers.

From The Wall Street Journal

Louvre officials have repeatedly warned over the past decade that the museum’s infrastructure was crumbling and its equipment out-of-date.

From The Wall Street Journal

The most recent headline number was 2.9%, but this is an out-of-date figure, because it compares recent prices with those a year ago.

From MarketWatch

"This left Y with an out-of-date plan which did not meet their needs."

From BBC

Related Words

• antiquated
• archaic
• obsolete
• outmoded