Simple Definition of unbeliever
: a person who does not believe something; especially : a person who does not believe in a particular religious faith
Examples of unbeliever
<a hardheaded unbeliever who demanded to see concrete evidence of any alleged UFO activity>
First Known Use of unbeliever
Seen and Heard
What made you want to look up unbeliever? Please tell us where you read or heard it (including the quote, if possible).