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.
The confrontation came just days after another judge ruled that the three-person leadership structure installed after Habba’s disqualification was itself unlawful, although that decision has been paused pending appeal. Kaelan Deese, The Washington Examiner, 22 Mar. 2026 The lawsuit, filed in federal court in Washington, seeks reinstatement and a court declaration that the terminations were unlawful. Arkansas Online, 21 Mar. 2026 Kansas City’s Multidisciplinary Public Safety Task Force and the Kansas City Police Department are also taking up the cause, with Mayor Quinton Lucas saying the machines can contribute to other unlawful activities. Jack Harvel, Kansas City Star, 21 Mar. 2026 The International Court of Justice sided with Mauritius in a 2019 case over the territory, issuing an advisory ruling that declared the British occupation unlawful. Freddie Clayton, NBC news, 21 Mar. 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 22 Mar. 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

More from Merriam-Webster on unlawful

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