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

• abandoned
• intemperate
• rampant
• raw
• runaway
• unbounded
• unbridled
• unchecked
• unhampered
• unhindered
• unrestrained

Examples of uncontrolled in a Sentence

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

Recent Examples on the Web

Flu experts said the risk of a broader outbreak among humans will continue to simmer if the virus remains uncontrolled in animals. —Evan Bush, NBC News, 22 Oct. 2024

Building standards across the region lack uniformity and are generally subjective and uncontrolled. —Farah Nibbs, The Conversation, 22 Oct. 2024

The mass and speed involved in physical AI, especially in cluttered and uncontrolled environments creates significant safety challenges. —Sabbir Rangwala, Forbes, 2 Oct. 2024

Because Grok is so open and relatively uncontrolled, the AI assistant has been caught spreading false US election information. —Kate O'Flaherty, WIRED, 9 Sep. 2024

Word History

First Known Use

circa 1535, in the meaning defined above

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