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Synonyms

outdated

American  
[out-dey-tid] / ˌaʊtˈdeɪ tɪd /

adjective

  1. no longer in use or fashionable; out-of-date; outmoded; antiquated.

outdated British  
/ ˌaʊtˈdeɪtɪd /

adjective

  1. old-fashioned or obsolete

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of outdated

First recorded in 1610–20; out- + date 1 + -ed 2

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.

That case, the company said, “related to an engineer following inaccurate advice that an AI tool inferred from an outdated internal wiki,” and none involved “AI-written code.”

From Los Angeles Times • Mar. 30, 2026

In reality, replication studies require significant time, resources, and careful experimentation, and meaningful scientific questions do not become outdated so quickly.

From Science Daily • Mar. 29, 2026

A State Department spokesperson said all bilateral relations fact sheets were archived and removed because most hadn’t been updated in more than two years, leaving them potentially outdated or inaccurate.

From The Wall Street Journal • Mar. 26, 2026

The government said it hopes to speed up decision making by stripping away "outdated regulations and overlapping consultations" as part of cuts to red tape.

From BBC • Mar. 25, 2026

It was a cheap publication, aimed at minor gentlemen and farmers, the sort of thing that is used for lighting fires once it becomes obviously outdated.

From "The Invention of Science" by David Wootton

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.