What does peccant mean?
Peccant is an uncommon formal adjective meaning morally guilty, erring, or defective. Its strongest sense refers to a person who has committed a wrong or failed a moral standard, but it can also describe an argument, method, or object that contains an error or flaw. The word has an elevated, literary tone and is often encountered in discussions of guilt, human fallibility, and moral responsibility. In older religious and philosophical writing, it could carry a particularly strong sense of sinfulness; modern usage is generally less explicitly theological. Peccant is especially useful when the context calls attention not merely to an undesirable outcome but to a breach of duty, logic, or accepted standards. Because it sounds formal and somewhat old-fashioned, it may sound intentionally emphatic in present-day speech.
Guilty of wrongdoing or moral fault; erring.
"The peccant official accepted responsibility for the decision."
Most strongly associated with formal, literary, religious, or moral contexts.
Marked by error, fault, or imperfection.
"The witness identified several peccant assumptions in the proposed model."
“Peccant” gives moral fault a formal voice: it can describe both a wrongdoing person and an imperfect argument.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does peccant come from?
Peccant entered English during the early modern period through French péccant, the present participle of pécher, “to sin” or “to err.” French pécher derives from Latin peccare, an ancient verb meaning “to sin,” “to commit a fault,” or “to make a mistake.” The same Latin root also underlies peccadillo, peccable, and, through negation, impeccable.
Related word forms
How peccant is actually used
This is a formal, literary, and comparatively rare word. It is often used in elevated or deliberately moral language and may sound intentionally archaic in ordinary conversation.
Easily confused with peccant
A peccadillo is a minor fault or indiscretion, whereas peccant describes someone or something that is guilty, erring, or faulty.