deprogram

verb (used with object), de·pro·grammed or de·pro·gramed, de·pro·gram·ming or de·pro·gram·ing.

1. to free (a convert) from the influence of a religious cult, political indoctrination, etc., by intensive persuasion or reeducation.
2. to retrain, as for the purpose of eliminating or replacing a learned or acquired behavior pattern or habit that is undesirable or unsuitable.

v.

“release from cult brainwashing,” 1973, from de- + program (v.). Related: Deprogrammed; deprogramming.

v.

1. To counteract or try to counteract the effect of an indoctrination, especially a religious or cult indoctrination.