opt-out
noun
Definitions
The act of opting out of something
A school or hospital that has withdrawn from local control
A regional broadcast that other stations in the network may elect not to include.
adjective
Definitions
Of a selection, the property of having to choose explicitly to avoid or forbid something; a decision having the default option being inclusion or permission; used particularly with regard to mailing lists and advertisement.
Example: With opt-out forms, take care to uncheck all unwanted selections.