1. to cause someone to forget or abandon something previously learned or believed
Usage: third person singular present tense of ‘unteach’

Examples

• The new evidence unteaches everything we thought we knew about the case.
• Good therapy sometimes unteaches harmful patterns of thinking.
• The coach unteaches bad habits before introducing proper technique.
• This experience unteaches me to trust strangers so easily.
• The documentary unteaches common misconceptions about the historical event.
• She unteaches her students’ previous errors in grammar.