crim·i·nal
ˈkri-mə-nᵊl 
ˈkrim-nəl
1
: relating to, involving, or being a crime
criminal neglect
a criminal organization
2
: relating to crime or to the prosecution of suspects in a crime
criminal statistics
brought criminal action
the criminal justice system
3
: guilty of crime
also
: of or befitting a criminal
a criminal mind
4
: disgraceful
It's criminal how unfunny this comedy is.—
Rick Bentley
Rick Bentley
criminally
adverb
1
: one who has committed a crime
2
: a person who has been convicted of a crime
Examples of criminal in a Sentence
Adjective
a history of criminal behavior
The captain of the wrecked boat was accused of criminal negligence.
The company brought criminal charges against her.
It's criminal that the government is doing nothing to stop the problem.
Noun
car thieves, pickpockets, burglars, and other criminals
Recent Examples on the Web
NPR, 19 Oct. 2025
Phypers is facing criminal charges, including two counts of injuring a spouse, cohabitant, fiancé, boyfriend, girlfriend or child's parent; and two counts of dissuading a witness by force or threat.
—Liza Esquibias, PEOPLE, 18 Oct. 2025
Julia Bonavita, FOXNews.com, 17 Oct. 2025
Instead, two wannabe criminals, with their faces obscured by pantyhose, simply walk into the local art museum and rip the paintings right off the walls.
—Haadiza Ogwude, Cincinnati Enquirer, 17 Oct. 2025
See All Example Sentences for criminal
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Adjective
Texas will deter criminal mischief and work with local law enforcement to arrest anyone engaging in acts of violence or damaging property.
—NPR, 19 Oct. 2025
Phypers is facing criminal charges, including two counts of injuring a spouse, cohabitant, fiancé, boyfriend, girlfriend or child's parent; and two counts of dissuading a witness by force or threat.
—Liza Esquibias, PEOPLE, 18 Oct. 2025
Noun
As the trend becomes increasingly widespread, criminals are turning to faster ways to procure cars for racing.
—Julia Bonavita, FOXNews.com, 17 Oct. 2025
Instead, two wannabe criminals, with their faces obscured by pantyhose, simply walk into the local art museum and rip the paintings right off the walls.
—Haadiza Ogwude, Cincinnati Enquirer, 17 Oct. 2025
See All Example Sentences for criminal
Cite this Entry
“Criminal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/criminal. Accessed 22 Oct. 2025.
Copy CitationKids Definition
criminal
1 of 2 adjective
crim·i·nal
ˈkrim-ən-ᵊl
ˈkrim-nəl
1
: being or guilty of a crime
a criminal act
2
: relating to crime or its punishment
criminal court
criminality
noun
ˌkrim-ə-ˈnal-ət-ē
criminally
adverb
ˈkrim-ən-ᵊl-ē
-nə-lē
criminal
2 of 2 noun
: a person who has committed a crime
Legal Definition
criminal
1 of 2 adjective
crim·i·nal
ˈkri-mə-nəl
1
: relating to, involving, or being a crime
criminal neglect
criminal conduct
2
: relating to crime or its prosecution
brought a criminal action
criminal code
compare civil sense 4, penal
criminal
2 of 2 noun1
: one who has committed a crime
2
: a person who has been convicted of a crime
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