1. Debtors who do not meet their financial obligations: Charles Dickens' books are filled with stories of defaulters who went to debtor's prison.
2. Not responding to a court summons: The judge was not impressed by the defaulter because this was the second time the plaintiff had chosen to default on a court appearance.
3. A person or team that doesn't appear for a scheduled game or contest: The home team was severely criticized because they were the defaulters at the critical game.