/ ɪnˈdɒktrɪneɪt; NAmE ɪnˈdɑːk-/ verb
( disapproving ) to force sb to accept a particular belief or set of beliefs and not allow them to consider any others :
[ vn ]
They had been indoctrinated from an early age with their parents' beliefs.
[also vn to inf ]
► in·doc·trin·ation / ɪnˌdɒktrɪˈneɪʃn; NAmE -ˌdɑːk-/ noun [ U ]:
political / religious indoctrination
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WORD ORIGIN
early 17th cent.: formerly also as endoctrinate ): from en- , in- into + doctrine + -ate , or from obsolete indoctrine (verb), from French endoctriner , based on doctrine doctrine.