verb (used with object),in·doc·tri·nat·ed,in·doc·tri·nat·ing.
to instruct in a doctrine, principle, ideology, etc., especially to imbue with a specific partisan or biased belief or point of view.
to teach or inculcate.
to imbue with learning.
Origin of indoctrinate
1620–30;in-2 + Medieval Latindoctrīnātus past participle of doctrīnāre to teach; see doctrine, -ate1
Related formsin·doc·tri·na·tion, nounin·doc·tri·na·tor, nounre·in·doc·tri·nate, verb (used with object),re·in·doc·tri·nat·ed,re·in·doc·tri·nat·ing.un·in·doc·tri·nat·ed, adjectiveCan be confusedinculcateindoctrinate
1620s, "to teach," from in- (2) "in" + Latin doctrina "teaching" (see doctrine). Meaning "to imbue with an idea or opinion" first recorded 1832. Related: Indoctrinated; indoctrinating. The earlier verb was indoctrine (c.1500).