false impression

noun phrase
UK /fɔːls ɪmˈprɛʃən/
US /fɔls ɪmˈprɛʃən/

A wrong idea about something or someone.

The big shadow gave me a false impression that a monster was in my room.


OTHER MEANINGS

2. A mistaken belief caused by how something looks or seems.

The shiny wrapper gave a false impression that the candy was new.

3. An incorrect opinion formed before knowing all the facts.

He got a false impression of the new kid because they met on a bad day.

4. A misleading appearance that makes people think something untrue.

The calm sea gave a false impression that the storm had passed.