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

Synonyms

• rampant
• runaway

Examples of uncontrolled in a Sentence

a tirade filled with uncontrolled anger about what the government was doing

Recent Examples on the Web

Three Welcome, Myth Busting Wins Firstly, the report is clear that ADHD remains under diagnosed in the UK, a not a rampant, uncontrolled Tik Tok trend. —Nancy Doyle, Forbes.com, 25 June 2025

Contact your dentist or primary care provider to determine the cause of uncontrolled gleeking and ways to prevent it or treat underlying conditions causing it. —Anna Giorgi, Verywell Health, 19 June 2025

For patients whose conditions remain uncontrolled, treat the problem like a diagnostic puzzle. —Robert Pearl, Twin Cities, 14 June 2025

Such uncontrolled reentry events are relatively common and rarely merit much notice. —Lee Billings, Scientific American, 7 May 2025

Word History

First Known Use

circa 1535, in the meaning defined above

Rhymes for uncontrolled

• ahold
• behold
• billfold
• blindfold
• cajoled
• consoled
• controlled
• cotswold
• eightfold
• enfold
• enrolled
• extolled

Medical 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