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 of uncontrolled

• 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

Unlike past uncontrolled backstage issues in AEW, WWE is effectively monetizing this personal tension, with this first-time singles encounter expected to fuel future rematches. — Alfred Konuwa, Forbes.com, 21 Aug. 2026

The Carlisle airport is uncontrolled airport, meaning there is no air traffic control tower or controllers on site. — Ayesha Ali, ABC News, 19 Aug. 2026

According to a news release, the project reduces the risk of an uncontrolled channel change caused by decades of erosion near the confluence of the Arkansas and White rivers. — Sydney Sasser, Arkansas Online, 19 Aug. 2026

In November 2022, for example, the core stage of a Chinese Long March 5B rocket fell to Earth in an uncontrolled reentry over Spain, prompting multiple airspace closures out of caution. — Brett Tingley, Space.com, 19 Aug. 2026

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