renouncer
/rɪˈnaʊnsər/
noun
- A person who formally gives up or rejects something, such as a belief, right, or position.
- She was known as a renouncer of fame, preferring to work behind the scenes.
- The treaty required each signatory to be a renouncer of future claims.
- As a renouncer of worldly possessions, he lived a simple life in the mountains.