un·​con·​trolled | \ ˌən-kən-ˈtrōld How to pronounce uncontrolled (audio) \

Definition of uncontrolled

: not controlled: such as
a : happening or done without being stopped, slowed, or controlled an uncontrolled tantrum his uncontrolled anger uncontrolled hypertension uncontrolled urban sprawl
b : not conducted or maintained in accordance with fixed rules, restraints, or procedures results from an uncontrolled study
c : not regulated by law with regard to possession and use uncontrolled substances

Examples of uncontrolled in a Sentence

Recent Examples on the Web The government’s fear is that an uncontrolled spread could overwhelm hospitals and cause a catastrophic loss of life. New York Times, 29 Mar. 2022 Yes, people are worried about inflation and housing scarcity and looming water shortages from climate change and uncontrolled groundwater drilling. New York Times, 11 Apr. 2022 Cancer is the term given to hundreds of diseases that share uncontrolled cell division and the potential to spread to other parts of the body. Dr. Keith Roach, oregonlive, 6 Apr. 2022 The uncontrolled release of a hazardous substance through the ground for multiple days is reportable to the agency, Maher said. Alex Demarban, Anchorage Daily News, 1 Apr. 2022 The effluent, along with uncontrolled industrial and agricultural runoff, degraded the water quality with nutrients and heavy metals. Brian Maffly, The Salt Lake Tribune, 31 Mar. 2022 Park officials are fighting against various threats to the park, including fires, mining exploitation, uncontrolled tourism and invasive species. Lucy Sherriff, CNN, 23 Mar. 2022 Data provided by Johns Hopkins University indicates that the United Kingdom, Italy, Germany, the Netherlands and Switzerland all experienced uncontrolled outbreaks earlier this month, with hospitalizations also increasing. Zee Krstic, Good Housekeeping, 19 Mar. 2022 As a result, such visits were often accompanied by uncontrolled, inebriated parties. David Reamer, Anchorage Daily News, 20 Mar. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'uncontrolled.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of uncontrolled

circa 1535, in the meaning defined above

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Time Traveler for uncontrolled

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The first known use of uncontrolled was circa 1535

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Last Updated

29 Apr 2022

Cite this Entry

“Uncontrolled.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uncontrolled. Accessed 21 May. 2022.

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More Definitions for uncontrolled


un·​con·​trolled | \ ˌən-kən-ˈtrōld \

Kids Definition of uncontrolled

: not being controlled


un·​con·​trolled | \ ˌən-kən-ˈtrōld How to pronounce uncontrolled (audio) \

Medical Definition of uncontrolled

1 : not being under control uncontrolled hypertension
2 : not incorporating suitable experimental controls uncontrolled drug trials

More from Merriam-Webster on uncontrolled

Nglish: Translation of uncontrolled for Spanish Speakers

Britannica English: Translation of uncontrolled for Arabic Speakers


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