Quote Originally Posted by it-ogo View Post
Brainwashing - промывка мозгов
Brainwashed one - человек с промытыми мозгами

It means exactly the same but there is no way to say it in one word.

There is word "распропагандированный" (try to pronounce it with only one stress), but it has no such a negative meaning.

I believe that the closest one-word synonym is "зомбированный" (zombificated).
Спасибо Вам большое!