unteach verb. [ʌn'ti:tʃ] Pa. t. & pple untaught [ʌn'tɔ:t]. M16.
[from UN-² + TEACH verb.]
1. verb trans. Cause (a person) to forget or discard previous knowledge. Also with double obj. M16.
■ R. Boyle The Reading of the Bible untaught them the Purity of the Roman Language.

2. verb intrans. Undo previous knowledge or teaching. M16.

3. verb trans. Expel from the mind (something known or taught) by instilling with different knowledge or training. M16.

[TahlilGaran] English Dictionary ▲