noun
misperception
mis-per-SEP-shun/mˌɪspɝsˈɛpʃʌn/
An incorrect understanding or impression of something.
The child's misperception turns a hanging coat into a frightening imagined person.

Etymology
Latin perceptio could mean both a taking and mental apprehension; English perception likewise meant understanding. Adding mis- marks that understanding as faulty, producing the sense of an incorrect interpretation.
In context
that is a common misperception people have about fun is that it is frivolous
More examples
- The report corrects several common misperceptions about electric cars.
- His silence reinforces their misperception that he dislikes the plan.
- A brief conversation clears up my misperception of her intentions.
Forms
misperception · misperceptions
misperceive verb — To understand or interpret something incorrectly.
Similar words
- misconception
- Usually a false belief or idea, not a passing impression.
- misunderstanding
- Often involves misinterpreting a particular statement, action, or situation.