1. making false and defamatory statements about someone; slandering
Usage: formal; present participle of calumniate

Examples

• The politician accused his opponents of calumniating his character.
• She was tired of people calumniating her reputation with false rumors.
• The newspaper was sued for calumniating the businessman.
• He spent years calumniating his former business partner.
• The witness testified that the defendant had been calumniating the victim for months.
• Stop calumniating innocent people with your baseless accusations.