1. to treat someone or something badly, cruelly, or with violence
Usage: formal

Examples

• The investigation revealed that workers were being maltreated by their supervisors.
• Animal rights activists protested against companies that maltreat laboratory animals.
• The foster care system failed to protect children who were maltreated in their homes.
• Historical records show how prisoners of war were often maltreated during the conflict.
• The new laws impose heavy penalties on anyone who maltreats elderly residents in nursing homes.
• She reported her neighbor for maltreating his dog by leaving it outside in freezing weather.