unlearn

un·learn  (n-lûrn)

tr.v. un·learned also un·learnt (-lûrnt), un·learn·ing, un·learns

1. To put (something learned) out of the mind; forget.

2. To undo the effect of; put aside the practice of: tried to unlearn his habit of nail-biting.

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unlearn

Verb

[-learning, -learned] or -learnt to try to forget something learnt or to discard accumulated knowledge

Thesaurus

Verb	1.	unlearn - try to forget; put out of one's memory or knowledge forget, bury - dismiss from the mind; stop remembering; "I tried to bury these unpleasant memories"
	2.	unlearn - discard something previously learnt, like an old habit chuck out, discard, cast aside, cast away, throw away, toss away, toss out, put away, throw out, cast out, dispose, fling, toss - throw or cast away; "Put away your worries"