Apostate is a related term of recusant.
As an adjective apostate
is guilty of apostasy.
As a noun apostate
is a person who has renounced a religion or faith.
As a verb recusant is
Guilty of apostasy.
- We must punish this apostate priest.
- So spake the apostate angel.
- A wretched and apostate state.
A person who has renounced a religion or faith.
(Roman Catholicism) One who, after having received sacred orders, renounces his clerical profession.
(historical) someone refusing to attend Church of England services, between the sixteenth and early nineteenth centuries
anyone refusing to submit to authority or regulation
pertaining to a recusant or to recusancy