unlearned

Word family

• learn
  verbA1
• learned
  adjectiveB2
• unlearn
  verbC1
• learner
  nounA2
• learning
  nounA2

Synonym discussion

Sense: verb/1

All four describe leaving an old behaviour or piece of knowledge behind, but they work in very different ways. 'Forget' is passive — information fades without you choosing it (you simply forget a phone number). 'Unlearn' is deliberate and effortful: you actively replace something you know how to do with a better way (a tennis player unlearns a weak grip). 'Break (a habit)' is the everyday choice for routines like smoking or biting your nails, focused on stopping the action rather than the underlying belief. 'Shake off' is informal and quick, often for nerves, doubts, or a mood, less suited to deep habits. So a coach helps a player unlearn a bad serve, a doctor helps a patient break a smoking habit, and a student tries to shake off exam nerves.

Common collocations

Etymology

Built from the prefix 'un-' (meaning 'not' for adjectives, or 'reverse the action' for verbs) plus 'learn'. As an adjective, 'unlearned' is recorded in English from the 14th century in the sense of 'not well educated'. The biology sense ('innate, not acquired by learning') is a much later technical use, becoming common in the 19th and 20th centuries with the rise of psychology. The verb 'unlearn' ('drop a habit deliberately') appears from the late 16th century, often paired with 'learn' for rhetorical contrast.