Simple Definition of dreamer
: a person whose ideas and plans are not practical or based in reality
: a person who dreams while sleeping
Examples of dreamer
I am a realist, but my sister is a dreamer.
Some dreamers talk in their sleep to the people in their dreams.
First Known Use of dreamer
Seen and Heard
What made you want to look up dreamer? Please tell us where you read or heard it (including the quote, if possible).