from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To cause to forget or unlearn something.
- transitive v. To teach the opposite or contrary of (something previously taught).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To cause someone to unlearn; to make someone forget something they have been taught.
- v. To cause something previously learned to be forgotten.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To cause to forget, or to lose from memory, or to disbelieve what has been taught.
- transitive v. To cause to be forgotten.
from The Century Dictionary and Cyclopedia
- To cause to forget, disbelieve, or give up what has been taught.
- To make forgotten; make to cease from being acquired by instruction.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. cause to unlearn
- v. cause to disbelieve; teach someone the contrary of what he or she had learned earlier
un- + teach (Wiktionary)