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
The leading Democratic Senate candidates condemned the move as unconstitutional and reckless.
—
Joseph Morton, Dallas Morning News, 4 Jan. 2026
This is unconstitutional and not what the American people asked for.
—Briauna Brown, CBS News, 3 Jan. 2026
Years after a Baltimore family lost its home and possessions under an eviction law later ruled unconstitutional, city leaders are pushing to change the process.
—Mathew Schumer, Baltimore Sun, 2 Jan. 2026
Now that business, Xael Charters, is suing Fernandez, asking a federal court to bar Fernandez from effectively shutting down their business and to declare that a state law cited by Fernandez is unconstitutional.
—Daniel Rivero, Miami Herald, 30 Dec. 2025
See All Example Sentences for unconstitutional
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Joseph Morton, Dallas Morning News, 4 Jan. 2026
This is unconstitutional and not what the American people asked for.
—Briauna Brown, CBS News, 3 Jan. 2026
Years after a Baltimore family lost its home and possessions under an eviction law later ruled unconstitutional, city leaders are pushing to change the process.
—Mathew Schumer, Baltimore Sun, 2 Jan. 2026
Now that business, Xael Charters, is suing Fernandez, asking a federal court to bar Fernandez from effectively shutting down their business and to declare that a state law cited by Fernandez is unconstitutional.
—Daniel Rivero, Miami Herald, 30 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 6 Jan. 2026.
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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