pacifist
noun
[ ˈpasɪfɪst ]
• a person who believes that war and violence are unjustifiable.
• "she was a committed pacifist all her life"
Similar:
peace-lover,
conscientious objector,
passive resister,
peacemaker,
peace-monger,
appeaser,
pacifier,
dove,
peacenik,
conchie,
satyagrahi,
pacifist
adjective
• holding the belief that war and violence are unjustifiable.