unconstitutional
adjective
un·con·sti·tu·tion·al
ˌən-ˌkän(t)-stə-ˈtü-sh(ə-)nəl 
-ˈtyü-
: not according or consistent with the constitution of a body politic (such as a nation)
an unconstitutional infringement on rights
unconstitutionally
adverb
Examples of unconstitutional in a Sentence
an unconstitutional infringement of rights
The law may be unconstitutional.
Recent Examples on the Web
But attorneys for the Florida Immigrant Coalition, the Farmworker Association of Florida and two individual plaintiffs filed the challenge in federal court in South Florida, alleging the state law is unconstitutional.
—
Jim Saunders, The Orlando Sentinel, 7 June 2025
The matter eventually landed in the U.S. Supreme Court (Springer v. U.S.), with Springer claiming that the tax was a direct tax and therefore unconstitutional, and that the seizure and sale of his property deprived him of his property without due process of law.
—Kelly Phillips Erb, Forbes.com, 7 June 2025
Trump's Justice Department followed up, threatening legal action, saying that allowing the girl to compete was unconstitutional.
—Swapna Venugopal Ramaswamy, USA Today, 6 June 2025
In launching legal challenges to block the funding freeze and visa threats, Harvard argued the government’s actions were unconstitutional attacks on free speech and academic freedom – rallying the public around the principle that federal officials shouldn’t dictate campus policies.
—Dalia Faheid, CNN Money, 5 June 2025
See All Example Sentences for unconstitutional
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Jim Saunders, The Orlando Sentinel, 7 June 2025
The matter eventually landed in the U.S. Supreme Court (Springer v. U.S.), with Springer claiming that the tax was a direct tax and therefore unconstitutional, and that the seizure and sale of his property deprived him of his property without due process of law.
—Kelly Phillips Erb, Forbes.com, 7 June 2025
Trump's Justice Department followed up, threatening legal action, saying that allowing the girl to compete was unconstitutional.
—Swapna Venugopal Ramaswamy, USA Today, 6 June 2025
In launching legal challenges to block the funding freeze and visa threats, Harvard argued the government’s actions were unconstitutional attacks on free speech and academic freedom – rallying the public around the principle that federal officials shouldn’t dictate campus policies.
—Dalia Faheid, CNN Money, 5 June 2025
See All Example Sentences for unconstitutional
Cite this Entry
“Unconstitutional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unconstitutional. Accessed 12 Jun. 2025.
Copy CitationKids Definition
unconstitutional
adjective
un·con·sti·tu·tion·al
ˌən-ˌkän(t)-stə-ˈt(y)üsh-nəl
-ən-ᵊl
: not according to or agreeing with the constitution of a state or society
unconstitutionally
adverb
-ˈt(y)üsh-nə-lē
-ən-ᵊl-ē
Legal Definition
unconstitutional
adjective
un·con·sti·tu·tion·al
ˌən-ˌkän-stə-ˈtü-shə-nəl, -ˈtyü-
: 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
unconstitutionally
adverb
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