controlled
Americanadjective
-
held in check; curbed.
poorly controlled anger.
-
carefully regulated, tested, or verified.
a controlled experiment.
-
(of a drug) restricted by law as to possession and use.
Morphine is a controlled drug.
Etymology
Origin of controlled
First recorded in 1580–90; control ( def. ) + -ed 2 ( def. )
Explanation
Something that's controlled is kept in check or restrained. Your controlled laughter in math class won't get you in trouble, because it's muted and calm. Some people really blow their stacks when they get angry, while others express a controlled anger, calmly explaining their frustration. The ability to keep your emotions controlled is a useful one. A different meaning of controlled is "restricted by law," — many medications and drugs are classified as "controlled substances. The root of both controlled and control is the Latin contrarotulus, "a register, counter, or record of something."
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.
Project would be one of the largest AI computing hubs and involve power controlled by the U.S. government.
From The Wall Street Journal ● Jul. 27, 2026
The firm, controlled by the Larry Ellison family, has pointed to regulatory approvals it has already garnered, including from the U.S.
From Los Angeles Times ● Jul. 27, 2026
Those differences, in turn, appear to have been controlled by the strength of each planet's magnetic field.
From Science Daily ● Jul. 27, 2026
Perhaps we should read more into his performance against Arslanbek Makhmudov in April where Fury - while still showing signs of decline - looked comfortable and controlled.
From BBC ● Jul. 26, 2026
But August is too far gone to be controlled.
From "Water for Elephants" by Sara Gruen
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.
