unidentified

adjective

un·​iden·​ti·​fied ˌən-ī-ˈden-tə-ˌfīd How to pronounce unidentified (audio)
-ə-ˈden-
Synonyms of unidentifiednext
: not having a known or established identity : not identified
unidentified flying objects
an unidentified suspect

Examples of unidentified in a Sentence

an unidentified worker reported the security breach some unidentified person helped them and then left quietly
Recent Examples on the Web
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.
The man, who remains unidentified publicly, was later pronounced dead at a local hospital. Austin Turner, CBS News, 14 June 2026 Tales of what happened at Roswell have grown in the telling so that it’s now seen as a keystone event by many true believers in the alien origins of unidentified flying objects (UFOs). Emma Gometz, Scientific American, 12 June 2026 Brinkema said at one point during the proceedings that just this week an unidentified individual had send an application for money from the fund directly to the court. Alexander Mallin, ABC News, 12 June 2026 The unidentified victim, who is believed to be between 17 and 25, was in Little Bay Park in Bay Terrace, when a fight broke out involving a group of teens. Thomas Tracy, New York Daily News, 12 June 2026 See All Example Sentences for unidentified

Word History

First Known Use

1861, in the meaning defined above

Time Traveler
The first known use of unidentified was in 1861

Cite this Entry

“Unidentified.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unidentified. Accessed 17 Jun. 2026.

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