compulsory
Americanadjective
-
required; mandatory; obligatory.
compulsory education.
- Antonyms:
- voluntary
-
using compulsion; compelling; constraining.
compulsory measures to control rioting.
- Antonyms:
- voluntary
noun
adjective
-
required by regulations or laws; obligatory
compulsory education
-
involving or employing compulsion; compelling; necessary; essential
Other Word Forms
Derived Forms
-
compulsorinessnoun
-
noncompulsorilynessnoun
-
noncompulsoryadjective
-
quasi-compulsoryadjective
-
uncompulsoryadjective
-
compulsorilyadverb
-
noncompulsorilyadverb
-
quasi-compulsorilyadverb
Inflected Forms
Nouns
Etymology
Origin of compulsory
1510–20; < Medieval Latin compulsōrius, equivalent to Latin compul-, variant stem of compellere ( see compel) + -sōrius, for -tōrius -tory 1; cf. compulsive
Explanation
When something is compulsory, it is required or must be done. In most states, it's compulsory for kids to attend school (or an equivalent homeschool) from age six to seventeen. This adjective is from Medieval Latin compulsorius, "using force," from Classical Latin compellere, "to force." The Latin suffix –orius corresponds to English -ory, "containing or involving." Other English words descended from the same Latin verb are compel and compulsive.
Vocabulary lists containing compulsory
Night
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The Bill of Rights
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Grade 11, List 1
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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.
See Examples For:
Oman and the U.S. are opposed to compulsory fees for vessels transiting the waterway.
From The Wall Street Journal ● Jul. 28, 2026
"Our ministry has mandated the compulsory use of life jackets, and we have supplied them in thousands to riverine states," he said.
From BBC ● Jul. 20, 2026
The film is a reminder that conformity is never compulsory, and that putting yourself out there is the only way to find out who’s ready to catch you.
From Los Angeles Times ● Jul. 16, 2026
It also said these candidates should face a compulsory evidence session prior to their appointment.
From BBC ● Jul. 9, 2026
Free from the BDM and compulsory labor service, her new life had begun at last.
From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti
What made these compulsories different was the manner in which the two-time defending world champions went through it.
From Washington Post ● Jul. 27, 2021
The synchronized divers must still perform them, however — compulsories are the first two dives the pairs do.
From Washington Post ● Aug. 19, 2016
But if the ISU wants to be that literal-minded, it might as well bring back compulsories.
From Slate ● Feb. 21, 2014
Scott usually dominated the compulsories, the tracing of figure-eight variations, which accounted for 60 percent of the scoring in her era, but she deftly executed spins and leaps as well.
From New York Times ● Oct. 1, 2012
“I like everything to be neat and tidy and symmetrical,” Scott said in reflecting on the exactness of her compulsories.
From New York Times ● Oct. 1, 2012
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.
