1. plural of indecorum; violations of propriety, good manners, or social conventions; breaches of decorum
Usage: formal; typically used in plural form

Examples

• The ambassador's indecorums at the state dinner caused considerable embarrassment.
• Such indecorums were unacceptable in Victorian society.
• The guest's indecorums included interrupting the host and speaking out of turn.
• Historical accounts documented the indecorums of the scandal with great detail.
• Despite his wealth, his indecorums prevented him from being accepted in polite circles.
• The etiquette guide warned against various indecorums in formal settings.