un·​con·​sti·​tu·​tion·​al | \ ˌən-ˌkän(t)-stə-ˈtü-shnəl How to pronounce unconstitutional (audio) , -ˈtyü-, -shə-nᵊl\

Definition of unconstitutional

: not according or consistent with the constitution of a body politic (such as a nation) an unconstitutional infringement on rights

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Other Words from unconstitutional

unconstitutionality \ ˌən-​ˌkän(t)-​stə-​ˌtü-​shə-​ˈna-​lə-​tē How to pronounce unconstitutionality (audio) , -​ˌtyü-​ \ noun
unconstitutionally adverb

Examples of unconstitutional in a Sentence

an unconstitutional infringement of rights The law may be unconstitutional.

Recent Examples on the Web

But Miller challenged his grand jury subpoena, arguing that Mueller’s appointment was unconstitutional. Chad Day, The Seattle Times, "Trump confidant Roger Stone seeks full Mueller report," 13 Apr. 2019 The clinic’s attorneys argue both laws are unconstitutional. Bruce Schreiner, The Seattle Times, "Judge cautions lawyers to watch language in abortion case," 25 Mar. 2019 Already pending before the justices is a ruling from a special federal court in North Carolina, which found that state’s congressional map an unconstitutional gerrymander drawn by majority Republicans to disenfranchise Democrats. Jess Bravin, WSJ, "Maryland to Appeal Gerrymandering Ruling, Setting Up New Supreme Court Battle," 15 Nov. 2018 This decision effectively negates a three-judge panel’s conclusion last summer, which stated several district lines were unconstitutional, intentionally discriminating against minority voters. Renae Reints, Fortune, "Supreme Court Upholds District Lines in Texas," 25 June 2018 This is inhumane, unconstitutional, and short-sighted. Michael Kiefer, azcentral, "Judge finds Arizona Corrections, officials in contempt, orders them to pay $1.45M," 22 June 2018 Many Republican lawmakers claimed by ruling the method unconstitutional, hundreds of laws are null and void as a result. Thomas Novelly, The Courier-Journal, "Kentucky's pension reform law was ruled unconstitutional: What to know," 21 June 2018 The district court’s decision was the first from a federal court in more than 30 years to reject a voting map as an unconstitutional gerrymander. Adam Liptak, BostonGlobe.com, "Supreme Court sidesteps decision on gerrymandering," 18 June 2018 Four federal judges later ruled Trump’s ban unconstitutional, which is where things still tenuously stand. Ruthe Stein, SFChronicle.com, "Proud family attends S.F. Frameline LBGTQ film fest opening of ‘TransMilitary’," 15 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unconstitutional.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unconstitutional

1734, in the meaning defined above

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Statistics for unconstitutional

Last Updated

28 Apr 2019

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Time Traveler for unconstitutional

The first known use of unconstitutional was in 1734

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English Language Learners Definition of unconstitutional

: not allowed by the constitution of a country or government : not constitutional


un·​con·​sti·​tu·​tion·​al | \ ˌən-ˌkän-stə-ˈtü-shə-nᵊl How to pronounce unconstitutional (audio) , -ˈtyü-\

Kids Definition of unconstitutional

: not according to or agreeing with the constitution of a country or government


un·​con·​sti·​tu·​tion·​al | \ ˌən-ˌkän-stə-ˈtü-shə-nəl, -ˈtyü- How to pronounce unconstitutional (audio) \

Legal Definition of unconstitutional

: 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

Other Words from unconstitutional

unconstitutionality \ -​ˌtü-​shə-​ˈna-​lə-​tē, -​ˌtyü-​ How to pronounce unconstitutionality (audio) \ noun
unconstitutionally adverb

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More from Merriam-Webster on unconstitutional

Spanish Central: Translation of unconstitutional

Nglish: Translation of unconstitutional for Spanish Speakers

Britannica English: Translation of unconstitutional for Arabic Speakers

Comments on unconstitutional

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something valued as if it were money

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