adjective
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illegal
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illicit; immoral
unlawful love
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an archaic word for illegitimate
Synonym Usage
See illegal.
Other Word Forms
Derived Forms
Etymology
Origin of unlawful
First recorded in 1250–1300, unlawful is from the Middle English word unlaweful. See un- 1, lawful
Compare meaning
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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.
Opinions were divided when a woman refused to stop parking in front of her neighbour's driveway because it has unlawful access - but what are the rules?
From BBC • Jun. 15, 2026
District Judge John McConnell said the restrictions on processing of asylum, work permit, green card and citizen applications from nationals of 39 African, Asian, Latin American and Middle Eastern countries were unlawful.
From Barron's • Jun. 5, 2026
Not only is it unlawful, it is also unconstitutional.
From Slate • Jun. 2, 2026
The short-barreled rifle was deemed unlawful because it did not meet the minimum federal requirement of 16 inches.
From Los Angeles Times • May 28, 2026
After prominent American conjure-politician Sebastien Durand won his case in the Marvellian Courts of Justice, the ban was ruled unlawful and at odds with the Marvellian Constitution.
From "The Marvellers" by Dhonielle Clayton
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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.