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

Expert skiers can ski the glacier from here on ungroomed trails in an uncontrolled environment. —Joanne Shurvell, Forbes, 20 Jan. 2025

Damaged and destroyed structures also prompt uncontrolled water leaks. —Andrew J. Whelton, CNN, 17 Jan. 2025

The car was being driven in the left lane when Maldonado reportedly turned to the right, leading the vehicle into an uncontrolled clockwise spin, according to the warrant affidavit. —Justin Muszynski, Hartford Courant, 16 Jan. 2025

One study found that sulforaphane, in the form of broccoli sprout extract, can help lower fasting blood glucose (sugar) and hemoglobin A1c (HbA1c) levels in people with uncontrolled type 2 diabetes. —Chelsea Rae Bourgeois, Rdn, Ld, Health, 11 Jan. 2025

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