1. the quality or state of being unfaithful or untrue to a person, cause, or duty

Examples

• The employee was fired for disloyalty to the company.
• His disloyalty to his friends cost him their trust.
• The general was accused of disloyalty to his country.
• She felt hurt by her sister’s disloyalty during the family dispute.
• Acts of disloyalty can destroy relationships quickly.
• The politician’s disloyalty to his party surprised many voters.