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
Jackson sued Jones in federal court, arguing that a Georgia campaign finance mechanism known as a leadership committee gave Jones an unconstitutional fundraising advantage.
—
Christopher Harris, CBS News, 16 June 2026
And this is exactly what is at stake in the lawsuit recently filed by the Florida Education Association to have the Family Empowerment Scholarship declared unconstitutional.
—Jim Rigg, Sun Sentinel, 16 June 2026
While the Supreme Court lifted tariffs on many goods, ruling that the executive order used to impose them was unconstitutional, tariffs on auto parts were enacted under a different authority, and remain in place.
—Camila Domonoske, NPR, 16 June 2026
Does that mean that the order is unconstitutional?
—Dana Taylor, USA Today, 15 June 2026
See All Example Sentences for unconstitutional
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Christopher Harris, CBS News, 16 June 2026
And this is exactly what is at stake in the lawsuit recently filed by the Florida Education Association to have the Family Empowerment Scholarship declared unconstitutional.
—Jim Rigg, Sun Sentinel, 16 June 2026
While the Supreme Court lifted tariffs on many goods, ruling that the executive order used to impose them was unconstitutional, tariffs on auto parts were enacted under a different authority, and remain in place.
—Camila Domonoske, NPR, 16 June 2026
Does that mean that the order is unconstitutional?
—Dana Taylor, USA Today, 15 June 2026
See All Example Sentences for unconstitutional
Cite this Entry
“Unconstitutional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unconstitutional. Accessed 17 Jun. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
