unclassified

adjective

un·​clas·​si·​fied ˌən-ˈkla-sə-ˌfīd 

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

Court documents list the charges against Ostendorf as unclassified misdemeanors. — River Valley Democrat-Gazette, Arkansas Online, 9 Sep. 2026

In late 2016, for example, the President’s Council of Advisors on Science and Technology issued the first thorough, unclassified warning about the potential national security risks posed by biotechnology. — Elizabeth Sherwood-Randall, Foreign Affairs, 18 Aug. 2026

When the Berkeley Lab opened its supercomputing center inside the building, the site accommodated an IBM device that at the time was the world’s most powerful unclassified supercomputer. — George Avalos, Mercury News, 14 Aug. 2026

Federal prosecutors can prepare an unclassified summary of any classified information being used as evidence in the case. — Jeanine Santucci, USA Today, 31 July 2026

Word History

First Known Use

1815, in the meaning defined at sense 2

Rhymes for unclassified

• acetamide
• acetonide
• acidified
• antimonide
• beatified
• benzaldehyde
• borohydride
• chalcogenide
• commodified
• decalcified
• declassified
• disaccharide

Kids Definition

unclassified

adjective

un·​clas·​si·​fied ˌən-ˈklas-ə-ˌfīd 

: not classified

especially : not requiring special treatment for purposes of security

unclassified documents