unidentified

adjective

un·​iden·​ti·​fied ˌən-ī-ˈden-tə-ˌfīd How to pronounce unidentified (audio)
-ə-ˈden-
: 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 unidentified suspect killed San Bernardino County Sheriff’s Deputy Andrew Nunez on Monday afternoon in Rancho Cucamonga, according to police. Joseph Wilkinson, Mercury News, 29 Oct. 2025 Video issued by the intelligence service shows an unidentified person holding a remote control, then pans to reveal a silver car on a road before the car explodes in a burst of flames. Catherine Nicholls, CNN Money, 29 Oct. 2025 The unidentified man was taken to Mercy Hospital, located a few blocks away from the arena. Ryan Gaydos, FOXNews.com, 28 Oct. 2025 The solo driver of the Jeep, an unidentified 24-year-old, was taken to a hospital with serious, but non-life-threatening injuries. Sam Gillette, PEOPLE, 28 Oct. 2025 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 3 Nov. 2025.

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