culprit

noun

cul·​prit ˈkəl-prət 

-ˌprit

1

: one accused of or charged with a crime

The culprit pleaded "not guilty."

2

: one guilty of a crime or a fault

The culprit expressed remorse at his sentencing.

3

: the source or cause of a problem

Lack of exercise and poor diet are the main culprits in heart disease.

Did you know?

We would be culpable—that is, deserving of blame—if we didn’t clearly explain the origin of culprit. Yes, it is related to culpable, which itself comes (via Middle English and Anglo-French) from the Latin verb culpare, meaning “to blame.” But the etymology of culprit is not so straightforward. In Anglo-French, culpable meant “guilty,” and this was abbreviated “cul.” in legal briefs and texts. Culprit was formed by combining this abbreviation with the Anglo-French word prest or prit, meaning “ready”; literally, a culprit was one who was ready to be proven guilty. The word was eventually adopted into English and used to refer to someone who is accused of a wrongdoing. The word has since taken on an additional meaning: “the source or cause of a problem.”

Synonyms of culprit

• offender
• criminal

Examples of culprit in a Sentence

The police eventually located the culprits.

the police caught the culprit a mere two blocks from the scene of the crime

Recent Examples on the Web

When the popular young man is found dead after a show, the culprit becomes even harder to find within this regime built on silence and fear. — Callum McLennan, Variety, 18 Sep. 2026

The culprits are Aedes aegypti, primarily daytime biters that thrive in urban and suburban areas and breed in flowerpots, buckets and other smaller containers, said Steve Harrison, manager of Orange County Mosquito Control. — Stephen Hudak, The Orlando Sentinel, 18 Sep. 2026

The culprit behind turmeric’s intense color is curcumin, a natural pigment that can cling stubbornly to surfaces. — Jessica Safavimehr, Southern Living, 17 Sep. 2026

Town staff have raced to try and save the trees, but local law enforcement has so far been unable to identify the culprits. — Andrew Graham, Sacbee.com, 17 Sep. 2026

Word History

Etymology

Anglo-French cul. (abbreviation of culpable guilty) + prest, prit ready (i.e., to prove it), from Latin praestus — more at presto

First Known Use

1678, in the meaning defined at sense 1

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Kids Definition

culprit

noun

cul·​prit ˈkəl-prət 

-ˌprit

1

: one accused of or charged with a crime or fault

2

: one guilty of a crime or fault