unclassified

adjective

un·​clas·​si·​fied ˌən-ˈkla-sə-ˌfīd How to pronounce unclassified (audio)
Synonyms of unclassifiednext
1
: not subject to a security classification
unclassified information
2
: not placed or belonging in a class

Examples of unclassified in a Sentence

Recent Examples on the Web
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Another 700 deaths remained unclassified. Swapna Venugopal Ramaswamy, USA Today, 9 Apr. 2026 The Cold War exposed the ongoing need for a one-stop source of basic intelligence - and an opportunity for what in 1971 became the unclassified Factbook. CBS News, 6 Apr. 2026 The Cold War exposed the ongoing need for a one-stop source of basic intelligence — and an opportunity for what in 1971 became the unclassified Factbook. Laurie Kellman, Los Angeles Times, 6 Apr. 2026 The Cold War exposed the ongoing need for a one-stop source of basic intelligence — and an opportunity for what in 1971 became the unclassified Factbook. ABC News, 5 Apr. 2026 See All Example Sentences for unclassified

Word History

First Known Use

1815, in the meaning defined at sense 2

Time Traveler
The first known use of unclassified was in 1815

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Cite this Entry

“Unclassified.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unclassified. Accessed 16 Apr. 2026.

Kids Definition

unclassified

adjective
un·​clas·​si·​fied ˌən-ˈklas-ə-ˌfīd How to pronounce unclassified (audio)
: not classified
especially : not requiring special treatment for purposes of security
unclassified documents

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