apostatical
/ˌæpəˈstætɪkəl/ or /əˈpɒstətɪkəl/Definitions
1. adjective
relating to or characteristic of an apostate, especially a person who has rejected or abandoned a particular faith, cause, or allegiance.
“The apostatical tendencies of the former cult member were a source of concern for the community.”
2. noun
a person who has rejected or abandoned a particular faith, cause, or allegiance.
“The apostatical individual was shunned by their former community.”