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
The measure to authorize the culling of 80 of these specimens is due to the uncontrolled growth of the invasive species in the Magdalena River basin, said Minister Vélez when announcing the decision.
—
Anabella González, CNN Money, 29 Apr. 2026
After initially being given three to four months to live, Sasse, 54, entered a clinical trial for a drug called daraxonrasib, an oral therapy (pill) that is designed to block the defective gene that triggers uncontrolled cellular growth.
—Melissa Rudy, FOXNews.com, 28 Apr. 2026
Leaving the house or making a left hand turn at an uncontrolled light can fill me with terror.
—Hannah Sacks, PEOPLE, 28 Apr. 2026
Some scholars have argued that these are just uncontrolled public rants of little intellectual value from unknown people (as most commenters use pseudonyms).
—Shepherd Mpofu, Encyclopedia Britannica, 27 Apr. 2026
See All Example Sentences for uncontrolled
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Anabella González, CNN Money, 29 Apr. 2026
After initially being given three to four months to live, Sasse, 54, entered a clinical trial for a drug called daraxonrasib, an oral therapy (pill) that is designed to block the defective gene that triggers uncontrolled cellular growth.
—Melissa Rudy, FOXNews.com, 28 Apr. 2026
Leaving the house or making a left hand turn at an uncontrolled light can fill me with terror.
—Hannah Sacks, PEOPLE, 28 Apr. 2026
Some scholars have argued that these are just uncontrolled public rants of little intellectual value from unknown people (as most commenters use pseudonyms).
—Shepherd Mpofu, Encyclopedia Britannica, 27 Apr. 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 5 May. 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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