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

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Antonyms & Near Antonyms

as in unnamed

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

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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 An unidentified ‘Secret Pro’, writing in Escape Collective last year, gave an indication of why. — Chris Marshall-Bell, New York Times, 29 June 2026 Nine teens and probation staff members at Los Padrinos were hospitalized last July after they were exposed to an unidentified narcotic. — James Queally, Los Angeles Times, 30 June 2026 Detainees later told authorities where to search for the bodies, leading Mexican prosecutors to uncover four unidentified bodies in the mountains. — Megan Janetsky, Chicago Tribune, 26 June 2026 The company’s lax security allowed the unidentified Chinese developer to continue accessing all customer personal information even after leaving the company, South Korean officials said. — ABC News, 2 July 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

When King asked if the unnamed celebrity was the one, Brown didn't hesitate.

— Raechal Shewfelt, Entertainment Weekly, 1 July 2026
Evidence also led officials to arrest an unnamed juvenile, who police say is facing charges of criminal use of an article with an altered identification mark and possession of a handgun by a person under 18.

— Dan Raby, CBS News, 30 June 2026

Definition of unnamed

Adjective

Sutton said The Wounded Blue first purchased the officer a wheelchair before connecting him with a renowned spinal surgeon through the same anonymous donor.

— Stepheny Price, FOXNews.com, 4 July 2026
By 1775, at age 47, as the first shots rang out at Lexington and Concord, her anonymous satires and plays were already shaping public opinion in support of independence.

— Robin Follman, Oc Register, 4 July 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 8 Jul. 2026.

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Synonyms of unidentified

adjective

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