- bad manners; rudeness
- a rude remark or act
WordReference Random House Learner's Dictionary of American English © 2017
- lack of courtesy;
rudeness:[uncountable]They have to endure the discourtesy of the city every day.
- a discourteous or impolite act:[countable]They did me a discourtesy by not telling me about the meeting.
- lack or breach of courtesy;
- a discourteous or impolite act.
- dis-1 + courtesy 1545–55