Word: unteach
Part of speech: Verb
Syllables: un
teach
Definition: To cause (something previously learned) to be forgotten, or recognized as an error, etc.
Morphemes:
Affix: un-
Language: en
PoS: Prefix
Meaning: do the opposite of, reverse (a specified action)
Affix: teach
Language: en
PoS: Verb
Meaning: To cause to learn or understand.