un·​iden·​ti·​fied | \ ˌən-ī-ˈden-tə-ˌfīd , -ə-ˈden-\

Definition of unidentified

: not having a known or established identity : not identified unidentified flying objects an unidentified suspect

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Examples of unidentified in a Sentence

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Meanwhile, deputies in South Carolina had found an unidentified woman whose nude body was dumped in the woods beside I-85 in May 1998, Spartanburg County Sheriff’s Lt. Jeffrey Collins, The Seattle Times, "After 20 years police in 2 states link dead mother and son," 6 Feb. 2019 Hong Kong officials said this would give police officers more time to investigate large crowds of unidentified possible violators or in cases involving social media, such as publishing an altered national anthem on YouTube. Natasha Khan, WSJ, "Hong Kong Moves to Criminalize Disrespect of China’s National Anthem," 9 Jan. 2019 Finally, this Tuesday, when the appellate panel’s ruling was announced, the Washington Post saw five Mueller prosecutors (including Dreeben) attend a sealed hearing in district court, along with two other unidentified lawyers. Andrew Prokop, Vox, "The mysterious grand jury appeal that may be tied to the Mueller investigation, explained," 19 Dec. 2018 The PNC Bank pilot project started in November, with cards being distributed to unidentified small- and medium-sized businesses. Megan Geuss, Ars Technica, "Pilot project demos credit cards with shifting CVV codes to stop fraud," 28 Dec. 2018 The hackers targeted an unidentified company under contract with the Navy’s Naval Undersea Warfare Center in Newport, R.I. Dustin Volz, WSJ, "Chinese Hackers Breach U.S. Navy Contractors," 14 Dec. 2018 The Florida Department of Health's Bureau of Epidemiology says, in a report obtained by SELF, that the unidentified child tested positive for influenza B at a health care provider, and the death was reported between September 30 and October 6. Korin Miller, SELF, "One Child in Florida Already Died From the Flu This Season," 16 Oct. 2018 The monument, which lies in the nave of the Westminster Abbey is the final resting place of an unidentified World War One soldier who was buried on Remembrance Day in 1920. Lauren Hubbard, Town & Country, "Princess Eugenie's Bouquet Has Been Laid On the Tomb of the Unknown Warrior," 13 Oct. 2018 During Bordeaux’s first finale, her fellow agents discovered some unidentified bones in Mexico, but they weren’t confirmed to belong to the newcomer until season 10 premiered this week. Megan Stein, Country Living, "'NCIS: LA' Fans Are Furious After Finding Out Their Favorite Character Died in the Premiere," 3 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unidentified.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unidentified

1861, in the meaning defined above

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Last Updated

16 Feb 2019

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The first known use of unidentified was in 1861

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English Language Learners Definition of unidentified

: not known or identified


un·​iden·​ti·​fied | \ ˌən-ī-ˈden-tə-ˌfīd\

Kids Definition of unidentified

: having an identity that is not known or determined an unidentified person

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excited commotion or publicity

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