Definitions

1. noun

The act of abandoning or renouncing a person, cause, or principle to which one had previously adhered, especially a religious faith.

“The apostasy of her former friend shook her faith in human relationships.”

2. noun

A person who has abandoned or renounced a person, cause, or principle to which one had previously adhered, especially a religious faith.

“The apostate had to face the consequences of his actions in the community.”