1. in a manner that forbids, prohibits, or condemns something; in a way that establishes or enforces a ban or restriction
Usage: formal; often used in legal or regulatory contexts
2. in a manner relating to or based on proscription; according to what is proscribed or outlawed
Usage: formal; legal or historical contexts

Examples

• The law acts proscriptively to prevent the sale of certain dangerous substances.
• The regulation proscriptively forbids the use of this chemical in food production.
• The treaty proscriptively excludes military weapons from the agreement.
• The code proscriptively restricts access to sensitive information.
• The policy operates proscriptively rather than prescriptively, focusing on what is forbidden rather than what is required.