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.
What happens if a landlord charges an unlawful late fee? Tiffani Jackson, Fort Worth Star-Telegram, 12 June 2026 London’s High Court ruled that the decision to proscribe the group was unlawful, but has kept the ban in place pending an appeals court ruling due Monday. ABC News, 12 June 2026 Despite the administration's shifting explanations about the future of the slush fund, the court's order ensures that taxpayer dollars cannot be distributed through this unlawful scheme while the courts fully consider the serious constitutional issues at stake. Melissa Quinn, CBS News, 12 June 2026 Two of those adults, Dominic Miller and Terry Young, were initially charged with second-degree murder, but accepted plea deals from Jackson County prosecutors to unlawful use of a weapon. Ben Wheeler june 12, Kansas City Star, 12 June 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 14 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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