UNLEARN
unlearn
(verb) discard something previously learnt, like an old habit
unlearn
(verb) try to forget; put out of one’s memory or knowledge
Source: WordNet® 3.1
Etymology
Verb
unlearn (third-person singular simple present unlearns, present participle unlearning, simple past and past participle unlearnt or unlearned)
(transitive) To discard the knowledge of.
(transitive) To break a habit.
Anagrams
• annuler
Source: Wiktionary
Un*learn", v. t. Etym: [1st pref. un- + learn.]
1. To forget, as what has been learned; to lose from memory; also, to
learn the contrary of.
I had learned nothing right; I had to unlearn everything. Milner.
2. To fail to learn. [Obs.] Dr. H. More.
Source: Webster’s Unabridged Dictionary 1913 Edition