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 fire is suspected to be sparked by human activity, but the precise action responsible for it remains unidentified. Ca Wildfire Bot, Sacbee.com, 10 Dec. 2025 The thief is currently unidentified and outstanding. Amanda Hari, CBS News, 10 Dec. 2025 Art market looks to the past Stung by losses on contemporary art, collectors are increasingly looking backward for quality and value, as demonstrated by the sale of a 15th-century triptych by an unidentified Flemish artist for nearly $8 million last week. semafor.com, 8 Dec. 2025 Meanwhile, investigations are underway in Ireland and France after two more incidents this week involving unidentified drones flying close to the coastlines of each country, marking the latest in a string of unexplained sightings in several European countries since September. Kara Fox, CNN Money, 8 Dec. 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 15 Dec. 2025.

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