DICT.TW Dictionary Taiwan

 un·learn /-ˈlɝn/
 (vt.)忘掉,從腦中掃除掉,去掉…的弊習

 Un·learn v. t.
 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.]
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 unlearn
      v 1: try to forget; put out of one's memory or knowledge
      2: discard something previously learnt, like an old habit
      [also: unlearnt]