✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

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
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.
Last month, in a stunning show of bipartisanship, Democrats and Republicans in both chambers voted overwhelmingly in favor of a bill to force the Justice Department to release all of its unclassified files on Jeffrey Epstein within 30 days. Muri Assuncao, Mercury News, 4 Dec. 2025 If true, this reporting raises questions as to the use of unclassified networks to discuss sensitive and classified information, as well as the sharing of such information with those who do not have proper clearance and need to know. Dan Gooding, MSNBC Newsweek, 3 Dec. 2025 The unclassified findings by the Defense Department's inspector general were expected to be released later this week, the person said. Anne Flaherty, ABC News, 2 Dec. 2025 Though researchers understood that the two human remains did not belong to the same species, Burtele Foot remained unclassified until recently, when researchers unearthed more fossils that helped solve the mystery. Maria Mocerino, Interesting Engineering, 30 Nov. 2025 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

Browse Nearby Words

Cite this Entry

“Unclassified.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unclassified. Accessed 8 Dec. 2025.

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

More from Merriam-Webster on unclassified

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!