disloyalty

Betrayal is the ultimate form of disloyalty.

His disloyalty to his friends cost him their trust.

She was accused of disloyalty to the company.

Disloyalty in a relationship can lead to its downfall.

The soldier was punished for his disloyalty to his country.

Political disloyalty can have serious consequences.

The disloyalty of the employee was revealed through leaked emails.

Disloyalty is often a result of lack of communication and understanding.

The disloyalty of the business partner was a shock to everyone.

He was fired for his disloyalty to the company.