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
That data can be retained and used in future ways, unknown and uncontrolled by those whose biometric data has been collected.
—
Anne Toomey McKenna,
The Conversation,
30 June 2026
Outside of programmed scripts, robots struggle to perform autonomous actions in uncontrolled environments.
—
Stephen Witt,
New Yorker,
29 June 2026
About four or five minutes after takeoff, a warning light appeared on the cockpit display that suggested the aircraft was experiencing an uncontrolled loss of air that might trigger a fire.
—
Jeremy Hsu,
ArsTechnica,
29 June 2026
For airports in uncontrolled airspace, drones must not fly more than 400 feet above the ground.
—
Christopher Edwards,
PEOPLE,
29 June 2026
See All Example Sentences for uncontrolled
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Anne Toomey McKenna,
The Conversation,
30 June 2026
Outside of programmed scripts, robots struggle to perform autonomous actions in uncontrolled environments.
—
Stephen Witt,
New Yorker,
29 June 2026
About four or five minutes after takeoff, a warning light appeared on the cockpit display that suggested the aircraft was experiencing an uncontrolled loss of air that might trigger a fire.
—
Jeremy Hsu,
ArsTechnica,
29 June 2026
For airports in uncontrolled airspace, drones must not fly more than 400 feet above the ground.
—
Christopher Edwards,
PEOPLE,
29 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 6 Jul. 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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