un·​con·​trolled ˌən-kən-ˈtrōld How to pronounce uncontrolled (audio)
: not controlled: such as
: happening or done without being stopped, slowed, or controlled
an uncontrolled tantrum
his uncontrolled anger
uncontrolled hypertension
uncontrolled urban sprawl
: not conducted or maintained in accordance with fixed rules, restraints, or procedures
results from an uncontrolled study
: not regulated by law with regard to possession and use
uncontrolled substances

Examples of uncontrolled in a Sentence

Recent Examples on the Web While university leadership attempts to address hate speech on campuses, the uncontrolled online spread of antisemitic sentiments remains a significant challenge. Sarah Hernholm, Forbes, 16 Feb. 2024 Advertisement Had there been no cleanout, the sediment would’ve been so high by now, the dam’s release valves would’ve clogged, and officials would’ve been helpless as floodwaters rushed over the spillway, resulting in an uncontrolled flow downstream along the Arroyo Seco. Rong-Gong Lin Ii, Los Angeles Times, 11 Feb. 2024 Income stagnation, attributed to neoliberalism by its critics, in fact arises from uncontrolled government spending that crowds out growth-sustaining investment, not only in the U.S. but in all advanced economies. Douglas Carr, National Review, 7 Feb. 2024 But this couple had moved from the Norfolk area where the cost of farmland had become prohibitive due to uncontrolled suburban sprawl. TIME, 6 Feb. 2024 An airtight home has no uncontrolled airflow between the inside and the outside of the building, saving energy and improving the building’s durability. Jenna Anderson, Sunset Magazine, 5 Feb. 2024 An uncontrolled growth of cells in your mouth may produce white patches on your tongue that look similar to oral thrush. Amanda Gardner, Health, 21 Jan. 2024 Shortly after takeoff, a door plug — a panel between the cabin and the outside — blew out because of loose bolts, leaving a hole in the side of the plane and causing an uncontrolled decompression of the aircraft. Madeleine Kearns, National Review, 28 Jan. 2024 Some proponents of this theory recommend treating patients with triple-anticoagulant therapy, an intervention that comes with the risk of uncontrolled bleeding. Rachael Bedard, The New Yorker, 23 Jan. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'uncontrolled.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1535, in the meaning defined above

Time Traveler
The first known use of uncontrolled was circa 1535

Dictionary Entries Near uncontrolled

Cite this Entry

“Uncontrolled.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uncontrolled. Accessed 1 Mar. 2024.

Medical Definition


un·​con·​trolled ˌən-kən-ˈtrōld How to pronounce uncontrolled (audio)
: not being under control
uncontrolled hypertension
: not incorporating suitable experimental controls
uncontrolled drug trials

More from Merriam-Webster on uncontrolled

Last Updated: - Updated example sentences
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