criminal

1 of 2

adjective

crim·​i·​nal ˈkri-mə-nᵊl How to pronounce criminal (audio)
ˈkrim-nəl
Synonyms of criminalnext
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
criminally adverb

criminal

2 of 2

noun

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
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.
Adjective
Diggs' milestone came during a week in which he was charged with strangulation and other criminal offenses related to a dispute Diggs allegedly had with his former private chef. CBS News, 5 Jan. 2026 Under his rule, Venezuela’s economy imploded, democratic institutions were hollowed out, criminal networks fused with the state, and millions fled the country – many for the United States. Monica Duffy Toft, The Conversation, 5 Jan. 2026
Noun
Oak Lawn’s history of being a haven for the LGBTQ community dates back to the mid-1900s when LGBTQ people were outcasts — and considered criminals. Timia Cobb breaking News Reporter, Dallas Morning News, 5 Jan. 2026 The video, posted on New Year’s Day, stars the brain, the athlete, the basket case, the princess and the criminal. Lisa Gutierrez, Kansas City Star, 5 Jan. 2026 See All Example Sentences for criminal

Word History

Etymology

Adjective

Middle English, borrowed from Anglo-French & Latin; Anglo-French criminal, borrowed from Latin crīminālis, from crīmin-, crīmen "indictment, crime" + -ālis -al entry 1

Noun

derivative of criminal entry 1

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Noun

1610, in the meaning defined at sense 1

Time Traveler
The first known use of criminal was in the 15th century

Browse Nearby Words

Cite this Entry

“Criminal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/criminal. Accessed 6 Jan. 2026.

Kids Definition

criminal

1 of 2 adjective
crim·​i·​nal ˈkrim-ən-ᵊl How to pronounce criminal (audio)
ˈkrim-nəl
1
: being or guilty of a crime
a criminal act
2
: relating to crime or its punishment
criminal court
criminality
ˌkrim-ə-ˈnal-ət-ē
noun
criminally
ˈkrim-ən-ᵊl-ē
-nə-lē
adverb

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 How to pronounce criminal (audio)
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 noun
1
: one who has committed a crime
2
: a person who has been convicted of a crime

More from Merriam-Webster on criminal

Last Updated: - Updated example sentences
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