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

After allowing 271 passing yards to Auburn last week, the primary culprit in all 39 of the Tigers’ points, Florida defensive coordinator minced few words about what lies ahead if nothing changes. — Noah White, Miami Herald, 24 Sep. 2026

The two-part November 13, Sonia’s Choice recounts the true story of a woman at the heart of the hunt for the culprits of the Paris terror attacks on November 13, 2015, who is now living in hiding. — Melanie Goodfellow, Deadline, 24 Sep. 2026

Though Nesmith was a former Dog and was never part of Lamb’s operation, Lamb and River are certain that Harkness is the culprit and are naturally concerned about what’s coming next. — Scott Tobias, Vulture, 23 Sep. 2026

And, unsurprisingly, the culprit behind this significant, long-term ice loss? — Chelsea Gohd, Space.com, 23 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