brainwashing

n. act of removing a person's ideas and replacing them with new ones

v. remove a person's ideas and replace them with other ideas

Brainwashing (also known as thought reform or as re-education) consists of any effort aimed at instilling certain attitudes and beliefs in a person — sometimes unwelcome beliefs in conflict with the person's prior beliefs and knowledge.The American Psychological Association (APA) has neither officially accepted the concept nor officially rejected it (see below), but brainwashing has received more attention from the APA in recent years.
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Brainwashing /brain·wash·ing/ any systematic effort aimed at instilling certain attitudes and beliefs in a person against their will, usually [more]Brainwashing - Community and Resources

Noun
1. forcible indoctrination into a new set of attitudes and beliefs
(hypernym) indoctrination

Verb
1. persuade completely, often through coercion; "The propaganda brainwashed many people"
(hypernym) persuade
2. submit to brainwashing; indoctrinate forcibly
(hypernym) indoctrinate

n. brainwashing, act of removing a person's ideas and replacing them with new ones