uncontrolled
adjective
un·con·trolled
ˌən-kən-ˈtrōld 
: 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
Müller contends that support for the referendum is motivated less by xenophobia than people’s concern that the population is growing at an uncontrolled rate.
—
Sebastian Shukla, CNN Money, 13 June 2026
In uncontrolled airspace, air traffic control does not provide services; pilots are responsible for their own navigation and collision avoidance.
—Agamemnon Crassidis, The Conversation, 11 June 2026
Known for its uses in jewelry, cubic zirconia doesn’t last in cold, uncontrolled temperatures.
—Andrew Paul, Popular Science, 10 June 2026
However, the majority of pancreatic cancers occur when genetic mutations trigger uncontrolled growth of cells in the pancreas, eventually forming tumors.
—Janet Loehrke, USA Today, 8 June 2026
See All Example Sentences for uncontrolled
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Sebastian Shukla, CNN Money, 13 June 2026
In uncontrolled airspace, air traffic control does not provide services; pilots are responsible for their own navigation and collision avoidance.
—Agamemnon Crassidis, The Conversation, 11 June 2026
Known for its uses in jewelry, cubic zirconia doesn’t last in cold, uncontrolled temperatures.
—Andrew Paul, Popular Science, 10 June 2026
However, the majority of pancreatic cancers occur when genetic mutations trigger uncontrolled growth of cells in the pancreas, eventually forming tumors.
—Janet Loehrke, USA Today, 8 June 2026
See All Example Sentences for uncontrolled
Cite this Entry
“Uncontrolled.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uncontrolled. Accessed 18 Jun. 2026.
Copy CitationMedical Definition
uncontrolled
adjective
un·con·trolled
ˌən-kən-ˈtrōld
1
: not being under control
uncontrolled hypertension
2
: not incorporating suitable experimental controls
uncontrolled drug trials
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