Search Result for "unlearn": 
Wordnet 3.0

VERB (2)

1. try to forget; put out of one's memory or knowledge;

2. discard something previously learnt, like an old habit;

perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LC_TIME = "tr_TR.UTF-8",
	LC_MONETARY = "tr_TR.UTF-8",
	LC_ADDRESS = "tr_TR.UTF-8",
	LC_TELEPHONE = "tr_TR.UTF-8",
	LC_NAME = "tr_TR.UTF-8",
	LC_MEASUREMENT = "tr_TR.UTF-8",
	LC_IDENTIFICATION = "tr_TR.UTF-8",
	LC_NUMERIC = "tr_TR.UTF-8",
	LC_PAPER = "tr_TR.UTF-8",
	LANG = "C"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
2 definitions retrieved:

The Collaborative International Dictionary of English v.0.48:

Unlearn \Un*learn"\, v. t. [1st pref. un- + learn.] [1913 Webster] 1. To forget, as what has been learned; to lose from memory; also, to learn the contrary of. [1913 Webster] I had learned nothing right; I had to unlearn everything. --Milner. [1913 Webster] 2. To fail to learn. [Obs.] --Dr. H. More. [1913 Webster]
WordNet (r) 3.0 (2006):

unlearn v 1: try to forget; put out of one's memory or knowledge 2: discard something previously learnt, like an old habit