uncontrolled

adjective

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

a tirade filled with uncontrolled anger about what the government was doing
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.
By Saturday morning, the blaze continues to expand uncontrolled. Ca Wildfire Bot, Sacbee.com, 12 July 2025 The movie follows the adventures of rebellious young boy, Ne Zha, who is feared by the gods having been born to mortal parents with wild, uncontrolled powers. Melanie Goodfellow, Deadline, 9 July 2025 The sheep, introduced over a century ago, grazed uncontrolled and destroyed nearly a third of the island's vegetation, leading to severe soil erosion and habitat degradation. Scott Travers, Forbes.com, 6 July 2025 By Thursday afternoon, the blaze continues to burn uncontrolled. Ca Wildfire Bot, Sacbee.com, 4 July 2025 See All Example Sentences for uncontrolled

Word History

First Known Use

circa 1535, in the meaning defined above

Time Traveler
The first known use of uncontrolled was circa 1535

Browse Nearby Words

Cite this Entry

“Uncontrolled.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uncontrolled. Accessed 24 Jul. 2025.

Medical Definition

uncontrolled

adjective
un·​con·​trolled ˌən-kən-ˈtrōld How to pronounce uncontrolled (audio)
1
: not being under control
uncontrolled hypertension
2
: not incorporating suitable experimental controls
uncontrolled drug trials

More from Merriam-Webster on uncontrolled

Last Updated: - Updated example sentences
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