brainwasher
/ˈbreɪnˌwɑʃər/
noun
- A person or thing that brainwashes others; someone who uses intense persuasion to control another's beliefs.
- The cult leader was a skilled brainwasher who broke down his followers' resistance.
- Some critics call the advertiser a brainwasher for using hidden messages.
- In the novel, the villain is a brainwasher who erases people's memories.