IPA: /ʌnˈlɜrn/
KK: /ʌnˈlɜrn/
To forget something that you have learned or to stop using a particular skill or habit.
She decided to unlearn the negative thoughts that had been holding her back.
Past: unlearned
Past Participle: unlearned
Unlearn → It is formed from "un-" (meaning not or opposite of) and "learn" (from Old English "leornian", meaning to acquire knowledge). The word "unlearn" means to reverse the process of learning or to discard knowledge previously acquired.
Think of 'not' or 'opposite' ('un-') when you want to remember that 'unlearn' means to forget or discard what you have learned.