out-of-date

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But some viruses are adept at changing their appearance – or mutating – so vaccines can quickly go out of date.

From BBC • Jun. 4, 2026

Federal investigators should examine what the security policies were, what type of attacks they were designed to prevent, and whether that protocol was out of date, Shortland said.

From Los Angeles Times • Apr. 26, 2026

Read: ‘It’s out of date to think about a retirement age.’

From MarketWatch • Mar. 24, 2026

Gen. Jack Shanahan, said building military AI is tough in part because much of the available data for training is out of date or unclear.

From The Wall Street Journal • Mar. 7, 2026

She bought a set of encyclopedias, too; it was fifteen years old and way out of date, but I would sit and pore through those.

From "Born a Crime: Stories from a South African Childhood" by Trevor Noah