noun
- lack of proper behavior, good manners, or appropriate conduct; impropriety
Usage: formal
Examples
- The senator’s outburst during the hearing was considered an act of indecorum.
- Her indecorum at the formal dinner embarrassed her family.
- The teacher addressed the student’s indecorum with a stern warning.
- Such indecorum would not be tolerated at the diplomatic reception.
- The judge cited the lawyer for indecorum in the courtroom.
- His indecorum during the ceremony shocked the other guests.