Top definition
A person who stands up for his or her beliefs.
A person who does what they think is right, even if they are alone.
A person who is not a bystander.
People who spoke out against the Holocaust were upstanders.
by ForeverAnUpstander February 13, 2011
Happy St. Patties Day!
Someone who stands up for a victim while they are being bullied.
You are at the playground and someone comes over and starts to trash talk about you. There are a crowd of bystanders but no one will help you stand up to the bully. The one person who does stand up will you to the bully is the upstander.
by Chevellechris April 15, 2014
Happy St. Patties Day!