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
Laura Bauer, Kansas City Star, 23 June 2025
Murphy later found the administration violated his order by flying eight criminal migrants to South Sudan, a country the State Department has warned against traveling to due to conflict and instability.
—Kaelan Deese, The Washington Examiner, 23 June 2025
Marie Poteriaieva, Forbes.com, 24 June 2025
With the help of a charming and ethnically diverse array of loveable colleagues, Peralta brings down criminals in entirely bingeable 22-minute chunks.
—Maris Kreizman, Rolling Stone, 24 June 2025
See All Example Sentences for criminal
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Adjective
Though the counts of second degree murder and armed criminal action, as well as others, were Jones’ first felony convictions, his criminal record in Municipal Court was chock full of warning signs.
—Laura Bauer, Kansas City Star, 23 June 2025
Murphy later found the administration violated his order by flying eight criminal migrants to South Sudan, a country the State Department has warned against traveling to due to conflict and instability.
—Kaelan Deese, The Washington Examiner, 23 June 2025
Noun
As crypto holders become increasingly savvy online, criminals start resorting to physical attacks.
—Marie Poteriaieva, Forbes.com, 24 June 2025
With the help of a charming and ethnically diverse array of loveable colleagues, Peralta brings down criminals in entirely bingeable 22-minute chunks.
—Maris Kreizman, Rolling Stone, 24 June 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 1 Jul. 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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