The act of putting someone on a list of people who are denied jobs, services, or opportunities because they're considered undesirable or dangerous.
From blacklist (noun, originating 1600s) + -ing (the process of). The practice became systematic during labor disputes and reached its political peak during 1950s anticommunist investigations.
Blacklisting is a shadow punishment with no due process — your name goes on a list, employers quietly reject you, and you may never know why, making it one of the most insidious forms of social control.
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