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

• 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

The researchers looked beyond climate change and greenhouse gas emissions to factors including biodiversity, land use, water quality and agricultural pollution — and concluded that food systems are the biggest culprit in pushing Earth to the brink of thresholds for a livable planet. —Dave Smith, Fortune, 3 Oct. 2025

Late substitute Artem Dovbyk was the chief culprit, having two of the penalty kicks saved before Matias Soule added to the embarrassment by also failing to convert. —Gregg Evans, New York Times, 2 Oct. 2025

The ransom notes that followed stirred up an uncontrollable press storm, but when the culprits fell silent, the police faltered, and Catriona and Adam were never seen again. —Jessica Radloff, Glamour, 1 Oct. 2025

Take back your basement by letting go of these common clutter culprits. —Mary Cornetta, Better Homes & Gardens, 1 Oct. 2025

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