What does discourtesy mean?
Discourtesy is a formal noun meaning rude or impolite behaviour — the absence of the good manners implied by its root word, "courtesy." It functions both as an uncountable noun describing rudeness in general ("the discourtesy of ignoring a guest") and as a countable noun naming a specific rude act ("a discourtesy to the committee"). Because it derives from the vocabulary of courtly conduct, it carries a somewhat elevated, old-fashioned register: it is far more common in official apologies, complaint letters, and diplomatic exchanges than in casual conversation, where speakers typically say "rudeness" instead. Its connotations are disapproving but measured — accusing someone of discourtesy suggests disappointment at a lapse in civility rather than outright anger. The word is useful precisely because of this tone: it lets writers and speakers condemn impolite behaviour with dignity and precision. Its antonyms include courtesy, politeness, and civility, and it belongs to a family of words built on the same courteous root.
Rude or impolite behaviour; a lack of courtesy.
"She was reprimanded for her discourtesy towards the visiting delegates."
In this uncountable sense, the word describes rudeness as a quality or pattern of behaviour.
A specific rude act or remark.
"Failing to reply to the invitation was seen as a serious discourtesy."
In this countable sense, the plural "discourtesies" refers to individual instances of rude behaviour.
Used when referring to multiple distinct acts or instances of rudeness rather than rude behaviour in general.
"The report catalogued a series of discourtesies committed during the negotiation."
Before it meant rudeness, "courtesy" literally meant the manners of a royal court — so calling someone discourteous is essentially saying they don't belong at court.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of discourtesy
Discourtesy was formed in English from "courtesy," which itself entered Middle English from Old French "curteisie," ultimately deriving from Latin "curia," meaning court — so courtesy originally described the refined behaviour expected of those attending a royal court. The negative form arose by adding the prefix "dis-", producing a word attested from roughly the sixteenth century. It shares this courtly lineage with related words such as "courteous," "courtier," and "curtsy."
Related word forms
How discourtesy is actually used
"Discourtesy" belongs to formal registers — it appears chiefly in official apologies, complaint letters, legal contexts, and diplomatic language. In everyday speech, people more often say "rudeness" or "impoliteness." The word carries a mildly old-fashioned, dignified tone that can make an accusation of bad manners sound measured rather than heated. Both its uncountable sense (rude behaviour generally) and countable sense (a particular rude act) are standard.
Easily confused with discourtesy
"Discourse" means written or spoken communication or discussion, whereas "discourtesy" means rudeness — they share letters but have entirely unrelated meanings.
"Courtesy" means politeness and good manners, while "discourtesy" is its direct opposite, formed with the negative prefix "dis-".