uncontrolled
Britishadjective
Explanation
Do your little cousins go running wildly around the house every time they're visiting? Then they're uncontrolled — they aren't being restrained by anyone or anything. Anything uncontrolled isn't kept in check or held back. An uncontrolled scream is intense, because you're not trying to tamp it down. An uncontrolled balloon has blown loose and is flying around with no one holding its string. And scientifically speaking, an uncontrolled study or experiment doesn't use a so-called "control group," which is used for comparison and makes the study more valid.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This week, analysts will look to see if TRex, which develops treatments for autoimmune and inflammatory diseases, and Retension, whose drug candidate could treat uncontrolled hypertension and resistant hypertension, can continue the momentum.
From The Wall Street Journal ● Oct. 8, 2026
Causes may include uncontrolled high blood pressure, trauma from a fall or accident, or overtreatment of blood thinners.
From Los Angeles Times ● Oct. 6, 2026
Major AI companies, particularly Anthropic and OpenAI, have issued stark public warnings about uncontrolled development of increasingly powerful systems -- even as they push out this same state-of-the-art technology.
From Barron's ● Sep. 29, 2026
Prolonged damage can lead to incontinence or uncontrolled peeing, and even kidney failure.
From BBC ● Sep. 22, 2026
As a matter of fact, they would probably find the raw uncontrolled conditions on earth too primitive for their taste.
From "Flying to the Moon: An Astronaut's Story" by Michael Collins
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
