UNIDENTIFIED Synonyms: 48 Similar and Opposite Words

unidentified

adjective

ˌən-ī-ˈden-tə-ˌfīd

Definition of unidentified

as in one

known but not named an unidentified worker reported the security breach

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in unnamed

not named or identified by a name some unidentified person helped them and then left quietly

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of unidentified His defense has pointed out that his client’s fingerprints were found neither on the truck used in the heist nor in the parking lot where the robbers allegedly handed the jewels to an unidentified individual. — Tessa Solomon, ARTnews.com, 22 Oct. 2026 Dogen wrote of an ostensibly genuine but unidentified couple living in New York City with two kids on combined incomes of $500,000. — Business Columnist, Los Angeles Times, 20 Oct. 2026 In their filing, prosecutors did not mention that prince by name, or say that the unidentified royal who communicated with Alfozan had ties to Raed. — Dan Mangan, CNBC, 19 Oct. 2026 The post said the unidentified infantryman was wounded at his position. — Yuliya Talmazan, NBC news, 19 Oct. 2026 See All Example Sentences for unidentified

Recent Examples of Synonyms for unidentified

Adjective

Drinkwater didn't make one appearance in a Chelsea shirt last season, whilst Bakayoko spent the season in Italy on loan at AC Milan.

— SI.com, SI.com, 3 Aug. 2019
Decisions made by engineers today, in other words, will determine not how one car drives but how all cars drive.

— Johannes Himmelreich, BostonGlobe.com, 30 Mar. 2018

Definition of one

Adjective

Page Six reported on Friday, citing unnamed sources, that Evans has been seeking Hollywood legal representation over a possible cut.

— Bilin Lin, Fortune, 25 Oct. 2026
Bullish Wall Street Venture Global, for example, is in advanced talks with QatarEnergy to supply 3 million metric tons annually, unnamed sources told Reuters.

— Spencer Kimball,Deena Zaidi, CNBC, 23 Oct. 2026

Definition of unnamed

Adjective

Last month, citing anonymous sources, Reuters reported that Solidigm was holding pitch meetings with investment banks for an IPO that could value the company at up to $150 billion.

— Sacbee.com, Sacbee.com, 24 Oct. 2026
One of the anonymous security officials who spoke to Reuters said Iran would also aim to prevent repairs after any attacks, to keep disruptions going as long as possible.

— Will McCurdy, PC Magazine, 24 Oct. 2026

Definition of anonymous

Browse Nearby Words

unhysterical

unidentified

unidiomatic

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Style

“Unidentified.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unidentified. Accessed 28 Oct. 2026.

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Synonyms of unidentified

adjective

Example Sentences

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