thoughtreader

noun
UK /ˈθɔːtˌriːdə/
US /ˈθɔːtˌriːdər/

A thoughtreader is someone who can know what you are thinking without you saying it.

The thoughtreader in the story knew the boy was scared before he spoke.


OTHER MEANINGS

2. A machine or device that guesses what people are thinking.

The toy thoughtreader lit up when she thought about cake.

3. A person who is very good at understanding how others feel.

My teacher is a thoughtreader; she always knows when we are confused.

4. In games, a player who tries to guess other players' secret ideas.

In the guessing game, the thoughtreader had to figure out the hidden word.