What is the greek word for dreamer?

The Greek word for dreamer is ονειροπόλος (oneiropolos), which is derived from the words όνειρο (oneiro), meaning "dream", and πόλος (polos), meaning "turn" or "rotate". The word ονειροπόλος can be used to describe someone who is lost in thought, or someone who is unrealistic or impractical.