unlawful

adjective

un·​law·​ful ˌən-ˈlȯ-fəl How to pronounce unlawful (audio)
Synonyms of unlawfulnext
1
a
: not lawful : illegal
unlawful actions
b
: acting contrary to or in defiance of the law
an unlawful possessor
2
: not morally right or conventional
unlawfully adverb
unlawfulness noun

Examples of unlawful in a Sentence

The sale of alcohol to minors is unlawful. it is unlawful to set off fireworks within the city limits
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Multiple lawsuits from advocacy groups, Capitol police officers and others call the program unlawful and corrupt, as Congress presses acting Atty. Michael Kunzelman, Los Angeles Times, 29 May 2026 Kelly's mother, Barbara Renner, is charged with manslaughter, and her daughter, Elyssa Seymore, is charged with unlawful imprisonment. Mahsa Saeidi, CBS News, 28 May 2026 Chaney was certified as an adult in Jackson County Family Court last week was charged with one count of first-degree assault, two counts of armed criminal action and one count of unlawful use of a weapon in Jackson County Circuit Court on Thursday. Nathan Pilling, Kansas City Star, 27 May 2026 Jett was arrested the following day and was charged with third-degree assault and battery and three counts of unlawful neglect of a child. Sean Joseph Outkick, FOXNews.com, 27 May 2026 See All Example Sentences for unlawful

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of unlawful was in the 14th century

Browse Nearby Words

Cite this Entry

“Unlawful.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unlawful. Accessed 1 Jun. 2026.

Kids Definition

unlawful

adjective
un·​law·​ful ˌən-ˈlȯ-fəl How to pronounce unlawful (audio)
ˈən-
: not lawful : being against the law : illegal
unlawfully adverb
unlawfulness noun

Legal Definition

unlawful

adjective
un·​law·​ful
1
: not lawful : not authorized or justified by law
2
: acting contrary to or in defiance of the law
an unlawful possessor
unlawfully adverb
unlawfulness noun

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