mislearned

/ˌmɪsˈlɜrnd/
verb
  1. To have learned something incorrectly or in a way that is wrong.
    • She mislearned the multiplication table as a child and had to relearn it later.
    • Many students mislearned the pronunciation of that word from a faulty recording.
    • He mislearned the rules of chess from an outdated book.
adjective
  1. Describing something that has been learned incorrectly or contains errors.
    • His mislearned technique for playing the guitar caused him to develop bad habits.
    • The mislearned grammar rules led to frequent mistakes in writing.
    • The mislearned facts about history were hard to unlearn.
What does "mislearned" mean? | whatsthatwordmean | whatsthatwordmean