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
Her filing argues his statements to law enforcement were unconstitutional because he wasn't given his Miranda rights, and that any evidence from his backpack should be suppressed because it was obtained without a search warrant.
—
Alice Gainer, CBS News, 1 May 2025
An ever-growing line of Supreme Court decisions establish that such exclusion is unconstitutional.
—Tom Rogers, MSNBC Newsweek, 29 Apr. 2025
The law was originally passed in 1985 but was never enforced because it was deemed unconstitutional under Roe v. Wade.
—Elaine Mallon, The Washington Examiner, 28 Apr. 2025
To the dismay of many, the 1882 KKK Act, meant to protect Black people from physical harm, was amazingly ruled unconstitutional by the Supreme Court.
—Gary Franks, Hartford Courant, 26 Apr. 2025
See All Example Sentences for unconstitutional
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Alice Gainer, CBS News, 1 May 2025
An ever-growing line of Supreme Court decisions establish that such exclusion is unconstitutional.
—Tom Rogers, MSNBC Newsweek, 29 Apr. 2025
The law was originally passed in 1985 but was never enforced because it was deemed unconstitutional under Roe v. Wade.
—Elaine Mallon, The Washington Examiner, 28 Apr. 2025
To the dismay of many, the 1882 KKK Act, meant to protect Black people from physical harm, was amazingly ruled unconstitutional by the Supreme Court.
—Gary Franks, Hartford Courant, 26 Apr. 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 8 May. 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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