unloyalty
/ʌnˈloʊ.ɪt.i/Definitions
1. noun
The quality or state of being disloyal or unfaithful to a person, organization, or cause.
“The company’s CEO was accused of unloyalty to its customers after raising prices without justification.”
2. noun
A lack of faithfulness or devotion to a person, organization, or cause.
“The politician’s unloyalty to his campaign promises led to a loss of public trust.”
3. noun
Disloyal or treacherous behavior or actions.
“The employee’s unloyalty to the company was exposed when she stole trade secrets from her former employer.”