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
Plaintiffs argue that enforcing time, place and manner restrictions against only one group amounts to unconstitutional viewpoint discrimination.
—
David Hudnall, Kansas City Star, 18 Dec. 2025
The order is now being challenged in federal court as an unconstitutional effort to punish the organization simply because of its views.
—Lauren Costantino, Miami Herald, 18 Dec. 2025
An amendment to the state constitution and legislation in 1972 and 1973 responded by making the death penalty mandatory in certain cases, but in 1976 the state Supreme Court ruled that such mandatory sentences were unconstitutional.
—Don Sweeney, Sacbee.com, 17 Dec. 2025
The full 11th Circuit agreed to hear the case earlier this month, vacating a May decision by a three-member panel of the court, which declared that the law was likely unconstitutional.
—Samantha Riedel, Them., 17 Dec. 2025
See All Example Sentences for unconstitutional
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David Hudnall, Kansas City Star, 18 Dec. 2025
The order is now being challenged in federal court as an unconstitutional effort to punish the organization simply because of its views.
—Lauren Costantino, Miami Herald, 18 Dec. 2025
An amendment to the state constitution and legislation in 1972 and 1973 responded by making the death penalty mandatory in certain cases, but in 1976 the state Supreme Court ruled that such mandatory sentences were unconstitutional.
—Don Sweeney, Sacbee.com, 17 Dec. 2025
The full 11th Circuit agreed to hear the case earlier this month, vacating a May decision by a three-member panel of the court, which declared that the law was likely unconstitutional.
—Samantha Riedel, Them., 17 Dec. 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 24 Dec. 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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