nihilist

Example:After years of doubt and skepticism, he became a born-again believer in the power of cybernetic reincarnation.

Definition:A person who has undergone a profound spiritual or ideological transformation, often involving a renewed commitment to their beliefs or values.

Example:He was once a devout believer but became an apostate, now advocating for atheism.

Definition:A person who formally renounces or abandons the religion or principles previously espoused, often indicating a strong change in one’s beliefs and values.

Example:After facing intense pressure, he became an abjurer of his previous political beliefs.

Definition:A person who publicly rejects, disavows, or repudiates beliefs, principles, or practices that they once held or adhered to, often refusing to follow or acknowledge them.