Question: One who is converted from one religion to another?
Disambiguated questions and answers: question: Negative term for one who is converted from one religion to another, usually when referenced by a member of the original religion?
Neutral, general term for one who is converted from one religion to another?
General term for one who is converted from one religion to another because of a relationship, not due to the aspects of the new religion?
When one who is converted from one religion to another shortly before dying?
When one who is converted from one religion to another through force and under duress?
answer: apostate
convert
secondary convert
deathbed conversion
forced convert
Natural Questions answer: Religious conversion (from the Wikipedia article "Religious conversion")