un·​con·​sti·​tu·​tion·​al ˌən-ˌkän(t)-stə-ˈtü-sh(ə-)nəl How to pronounce unconstitutional (audio)
: not according or consistent with the constitution of a body politic (such as a nation)
an unconstitutional infringement on rights
unconstitutionality noun
unconstitutionally adverb

Examples of unconstitutional in a Sentence

an unconstitutional infringement of rights The law may be unconstitutional.
Recent Examples on the Web In December, the court ruled 4-to-3 that the legislative maps favoring Republicans were unconstitutional and ordered new maps before the 2024 election. Anjali Huynh, New York Times, 19 Feb. 2024 Business Insider Amazon argued in a legal filing that the existence of the National Labor Relations Board is unconstitutional. Emma Burleigh, Fortune, 19 Feb. 2024 However, the country's Constitutional Council ruled Thursday that those moves were unconstitutional and ordered the government to hold the election as soon as possible, presumably allowing enough time for campaigning. arkansasonline.com, 17 Feb. 2024 One appeal argues that Creech’s death sentence is unconstitutional because a judge imposed it. Kevin Fixler, Idaho Statesman, 15 Feb. 2024 In Shelby County, the Court held unconstitutional the 1965 Voting Rights Act’s severe provision that would have frozen into place the voting procedures in the segregationist South. Robert J. Delahunty, National Review, 14 Feb. 2024 That prompted a lawsuit filed by the parents of three teenage transgender girls that asked a court to declare the ban unconstitutional and block its enforcement. Cnn.com Wire Service, The Mercury News, 9 Feb. 2024 The Florida Supreme Court had ordered manual recounts across the state, which Team Bush saw as an unconstitutional overreach. E. Tammy Kim, The New Yorker, 7 Feb. 2024 But the commission had to be approved by the supreme court, which struck it down as unconstitutional the following year. Vaibhav Vats, The Atlantic, 3 Feb. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unconstitutional.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1734, in the meaning defined above

Time Traveler
The first known use of unconstitutional was in 1734

Dictionary Entries Near unconstitutional

Cite this Entry

“Unconstitutional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unconstitutional. Accessed 27 Feb. 2024.

Kids Definition


un·​con·​sti·​tu·​tion·​al ˌən-ˌkän(t)-stə-ˈt(y)üsh-nəl How to pronounce unconstitutional (audio)
: not according to or agreeing with the constitution of a state or society
unconstitutionality noun

Legal Definition


un·​con·​sti·​tu·​tion·​al ˌən-ˌkän-stə-ˈtü-shə-nəl, -ˈtyü- How to pronounce unconstitutional (audio)
: contrary to or failing to comply with a constitution
especially : violative of a person's rights guaranteed by the U.S. Constitution
an unconstitutional search and seizure
unconstitutionality noun
unconstitutionally adverb
Last Updated: - Updated example sentences
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