unchecked

adjective

un·​checked ˌən-ˈchekt How to pronounce unchecked (audio)
Synonyms of uncheckednext
: not checked: such as
a
: not hindered, slowed, or restrained
unchecked growth
b
: not verified
unchecked data/information

Examples of unchecked in a Sentence

unchecked corruption in the state's prison system
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.
Recreational activities have changed, but the spiral from contender to cellar remains unchecked. Ronald Blum, Chicago Tribune, 27 Apr. 2026 This sprawling, unchecked population growth just increases water demand. Dp Opinion, Denver Post, 25 Apr. 2026 Experts have long warned that unchecked populations of invasive species can destabilize freshwater ecosystems, particularly in densely populated urban areas like Jakarta. ABC News, 24 Apr. 2026 If left unchecked, the discourse will overshadow the important work that must be done. Denise Horland, Sun Sentinel, 20 Apr. 2026 See All Example Sentences for unchecked

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of unchecked was in the 15th century

Browse Nearby Words

Cite this Entry

“Unchecked.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unchecked. Accessed 1 May. 2026.

More from Merriam-Webster on unchecked

Love words? Need even more definitions?

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

More from Merriam-Webster